The part of the eye that prevent light from reflecting internally and is heavily vascularized to deliver blood to the retina: choroid.
What is choroid?The choroid is highly vascularized to provide blood to the retina and contains dark pigmentation to stop light from reflecting inside. Anteriorly, the choroid, ciliary body, and iris are all joined.. The ciliary body muscles regulate the lens's thickness. The iris acts as a diaphragm, changing the pupil's aperture at its center. This regulates how much light is allowed to enter the retina. In strong light, the iris' muscle fibers constrict the pupil to accommodate close vision; in low light, they enlarge it to accommodate far vision. Each individual's iris is a different color.
To know more about choroid visit:
https://brainly.com/question/799280
#SPJ4
The hormone _____ stimulates the storage of triglycerides during times of energy excess.
The hormone insulin stimulates the storage of triglycerides during times of energy excess.
Insulin is a peptide hormone produced by beta cells of the pancreatic islets encoded in humans by the INS gene. It is considered to be the main anabolic hormone of the body.
It regulates the metabolism of carbohydrates, fats and protein by promoting the absorption of glucose from the blood into liver, fat and skeletal muscle cells. In these tissues the absorbed glucose is converted into either glycogen via glycogenesis or fats (triglycerides) via lipogenesis, or, in the case of the liver, into both.
Glucose production and secretion by the liver is strongly inhibited by high concentrations of insulin in the blood. Circulating insulin also affects the synthesis of proteins in a wide variety of tissues. It is therefore an anabolic hormone, promoting the conversion of small molecules in the blood into large molecules inside the cells. Low insulin levels in the blood have the opposite effect by promoting widespread catabolism, especially of reserve body fat.
Full question :
Q. The hormone ___________ stimulates the storage of triglycerides during times of energy excess, such as after a meal, by causing adipocytes, and to a lesser extent skeletal muscle, to take up glucose and fatty acids from the blood.
Learn more about Insulin here : https://brainly.com/question/786474
#SPJ4
Areas along the costal regions of continents have more moderate climates than their inland counterparts. What property of water allows this to be possible?
Areas along costal regions of continents have more moderate climates than their inland counterparts because Water has a high specific heat.
Water has a higher heat capacity than soil and rock, so the ocean takes much longer to heat and to cool than the land. Coastal areas will generally have more moderate temperatures than inland areas because of the heat capacity of the ocean.
Large bodies of water such as oceans, seas, and large lakes affect the climate of an area. Water heats and cools more slowly than land. Therefore, in the summer, the coastal regions will stay cooler and in winter warmer. A more moderate climate with a smaller temperature range is created.
To learn more about Water , here
https://brainly.com/question/19920929
#SPJ4
What is the expected outcome on regional precipitation as a result of global warming?
A Final statement or concluding statement
Mid-latitude dry zones will get drier while tropically wet parts will get wetter. Even in locations where the total amount of precipitation is expected to decrease, heavy precipitation events will probably occur more frequently. Depending on the location, heavy downpours, which currently happen around once every 20 years, are predicted to happen twice as frequently to five times more frequently by the year 2100.
Why precipitation is affected by global warming?Precipitation intensity and frequency can be impacted by climate change. Oceans that are warmer cause more water to evaporate into the atmosphere. More severe precipitation, such as heavier rain and snowstorms, can result from more moisture-laden air moving over land or converging into a storm system.
1 Crop loss, soil erosion, and an increase in flood danger owing to heavy rainfall (see the River Flooding indicator) are all possible results of heavy precipitation, which can then result in accidents, drownings, and other flooding-related health effects.
2 Additionally, because pollutants left on the land wash into water bodies during precipitation, runoff can harm water quality.
To learn more about Global warming from the given link
https://brainly.com/question/3553382
#SPJ4
E. coli is a species of bacteria that causes many different infections in humans. certain e. coli strains have developed resistance to antibiotics, making infections with these strains difficult to treat. how do bacteria such as e. coli, which reproduce asexually, gain new traits such as antibiotic resistance?
By mutating their DNA in response to environmental conditions to gain beneficial traits, reproduce asexually, gain new traits such as antibiotic resistance.
Antibiotic resistance in bacteria denotes the bacteria's incapacity to be treated by an antibiotic, which means the antibiotic's effectiveness against the bacteria is either abolished or diminished.What environmental factors could cause DNA to mutate?
If mistakes are made and not fixed right away. Additionally, exposure to environmental elements including smoking, sunshine, and radiation can result in mutations.
Which type of mutation depend on the condition of the environment?
Somatic mutagenesis
Therefore, a large portion of an organism may have the same mutation. These kinds of mutations, which can result in diseases like cancer, are typically brought on by environmental factors like ultraviolet radiation or any exposure to certain dangerous substances.What is a mutation that is beneficial?
A type of mutation known as a beneficial mutation affects an organism in a favorable way. These mutations are uncommon but important.Learn more about mutation
brainly.com/question/17130462
#SPJ4
What structure is not perfused as blood flows from the venae cavae to the pulmonary veins?
Left anterior descending artery is not perfused as blood flows from the venae cava to the pulmonary veins.
Blood is supplied to the front of the left side of the heart by the left anterior descending artery, which arises from the left coronary artery.The left coronary artery's circumflex artery splits off and surrounds the heart muscle. The lateral side and rear of the heart both receive blood from this artery.The right atrium receives blood from the body that is low in oxygen from the inferior and superior vena cava. Right ventricular blood is transported by the pulmonary artery into the lungs, where it is infused with oxygen. The left atrium receives blood that is oxygenated from the pulmonary veins.learn more about venae cava here: https://brainly.com/question/3906038
#SPJ4
Left anterior descending artery structure is not perfused as blood flows from the venae cavae to the pulmonary veins.
What is left anterior?When something interferes with the signal of your heartbeat at the left anterior fascicle of your left bundle branch, it is known as a left anterior fascicular block. As a result, the left ventricle of your heart contracts after the right ventricle.Left anterior fascicular block (LAFB), which causes scarring in a portion of the left ventricle, is a disease of the heart that may not be as benign as currently believed and may raise the risk of heart failure, sudden cardiac death, or atrial fibrillation.Left bundle branch block occurs seldom in young, healthy individuals. If you don't have any other underlying heart issues, this illness appears to have little impact on how long you survive. If your heart is unaffected by any other diseases, you might not even need treatment.Blood is supplied to the front of the left side of the heart by the left anterior descending artery, which arises from the left coronary artery. The left coronary artery's circumflex artery splits off and surrounds the heart muscle. The lateral side and rear of the heart both receive blood from this artery.Learn more about Left anterior here:
https://brainly.com/question/24805252
#SPJ4
The sequence of amino acids held together by peptide bonds is the ________. primary structure tertiary structure secondary structure quaternary structure.
The sequence of amino acids held together by peptide bonds is the primary structure which is a linear sequence built by twenty one amino acids each having unique side chain.
The amino acids are small organic molecules consisting of central carbon atom linked to an amino group , a carboxyl group, a hydrogen atom and variable component. Within a protein, multiple amino acids linked together by peptide bond forming long chain. Peptide Bond are formed by a biochemical reaction extracting water molecules as it joins the amino group of one amino acid to the carboxyl group of neighboring amino acid.
The primary structure of protein drives the folding and intramolecular bonding of the linear amino acid chain, which ultimately determines the protein's three dimensional shape.
Hence, the correct answer will be option (a)
To learn more about peptide bond here
https://brainly.com/question/15078143
#SPJ4
The wings of a bat and an insect are __________ structures, meaning that they evolved from very different original structures-they are not descended from a common ancestor with wings.
The wings of bats and insects are analogous structures.
what is the analogous structure
analogous structure indicates structurally they are different but functionally they are the same.
In the case of bats and insects, the wing's structure originated from different structural origins, but they perform common functions like flying. means they are structurally different but functionally the same. that is called an analogous organ.
to learn about analogous organs refer to
https://brainly.com/question/8593743
#SPJ2
What adaptive immune responses, if any, could one expect to function in a human born without a thymus?
Adaptive immune response is an immunity response that occurs after exposure to a foreign substance .
The thymus gland a primary lymphoid organ is an important part of immune system as T cells develop in the thymus. The cells of the adaptive immune system are lymphocytes B cells and T cells. As adaptive immune system depends on T cell and innate immune system, one cannot function properly and constantly get sick from bacteria or viruses infection, if born without it.
Removal of the thymus at later stages of life has no significant effect on immunity because enough T-cells are generated during fetal stage, i.e. before birth.
To learn more about Adaptive immunity , here
https://brainly.com/question/3520843
#SPJ4
What is the role of glucose in respiration?
Answer:
One molecule of glucose goes through the process of cellular respiration to produce 36 ATP. Glucose is broken down to form pyruvate during the first step of cellular respiration, which is then used to fuel the citric acid cycle and oxidative phosphorylation.
Glucose is used to make energy in cellular respiration.
It produces the molecule ATP, the main energy storage and transfer unit of a cell.
Also, Cells this in order to remain healthy and active.
Explanation:
I hope this helps and have a good day!
Which statement BEST supports the choice made in Part A? A The diagram shows four daughter gametes that have exchanged genetic information between chromatids. B The diagram shows four unique gametes that are the result of receiving one random allele from each parent. C The diagram shows four unique gametes that are the result of two chromosomes separating in different ways. D The diagram shows four daughter gametes that incorrectly contain fewer chromosomes than the parent cells.
A statement which best supports the choice made in Part A (independent assortment) is: C. The diagram shows four unique gametes that are the result of two chromosomes separating in different ways.
Mendel's law of independent assortment.Mendel's law of independent assortment is a theory which states that the alleles of two or more different genes are sorted into unique gametes that are independent of each another.
This ultimately implies that, the allele that is typically being received by a gamete for one gene doesn't influence or affect the type of allele that is received for another gene.
Based on the biological process (independent assortment) shown in the image attached below for part A, we can infer and logically deduce that a statement which best supports the choice made is that he diagram shows four unique gametes that are the result of two chromosomes separating in different ways.
Read more on independent assortment here: https://brainly.com/question/2376592
#SPJ1
the graph shows how the rate of photosynthesis of a plant varies with light intensity. interpret the graph and justify statement.
The graph shows that the rate of photosynthesis increases with increased light intensity, other conditions being constant.
Photosynthesis and light intensityFrom the graph, the rate of photosynthesis increases with an increase in light intensity.
At low light intensity, the photosynthesis rate increases with an increase in the concentration of carbon dioxide and level off at some point.
With medium light intensity, the rate of photosynthesis is about twice that of low light intensity under the same concentration of carbon dioxide. It also gradually levels off when the concentration of carbon dioxide reached a particular point.
The same trend applies to high light intensity. The rate of photosynthesis increased accordingly, much more than low and medium-intensity light.
Both light and carbon dioxide concentration can limit the rate of photosynthesis. When both factors are abundant, photosynthesis can be limited by other factors such as water, nutrient, etc.
More on light and photosynthesis can be found here: https://brainly.com/question/13201447
#SPJ1
The hindbrain consists of the ____. a. thalamus and hypothalamus b. tectum, tegmentum, and reticular formation c. medulla, pons, and cerebellum d. spinal cord and cranial nerves
The hindbrain consists of the medulla, the pons, and the cerebellum.
The hindbrainThe hindbrain is the portion of the brain that is otherwise known as the rhombencephalon. It is the part of the brain that is located towards the lower back.
The hindbrain consists of 3 main parts:
The medulla oblongataThe ponsThe cerebellumEach component has specific functions they perform. The medulla oblongata is located at the extreme end where the brain connects with the spinal cord. It controls activities such as heartbeat, blood pressure, and respiration.
The pons of the hindbrain work hand in hand with the medullar oblongata for effective breathing. In addition, it is the part of the brain that controls the circadian rhythm of the body.
The cerebellum helps the body to maintain postural balance and adjustments when necessary.
More on the hindbrain can be found here: https://brainly.com/question/5427915
#SPJ1
According to the bell-magendie law, ______________________ exit from the ventral horns of the spinal cord, and sensory information enters the __________________________
According to the bell magendie law, " the ventral spinal roots transmit motor impulses and the posterior roots sensory impulses,which establish a major landmark in the history of neuroscience."
The nature and physiology of the phenomena were described independently by sir charles bell , he is British anatomical scientist and french physiologist francois magendie after that Johannes peter muller confirmed it.
The ventral roots preganglionic sympathetic fibers of the atomic nervous system exit the spiral cord with ventral roots T1 through L2. It consist predominately of efferent somatic motor fibers. There are also 31 pairs of spinal nerves and roots. Eight pairs of cervical nerves exit the cervical cord at each vertebral level.
To learn more about the Johannes peter muller here
https://brainly.com/question/16010930
#SPJ4
The inability of lateral inhibition to explain White's illusion suggests that some contrast effects are based in the retina. the cortex. the optic nerve. the cornea.
The inability of lateral inhibition to explain White's illusion suggests that some contrast effects are based in the cortex.
What is white's illusion?The perceptual phenomenon known as "White's illusion" occurs when two equiluminant gray patches are superimposed on a square-wave grating in black and white and appear to be of different luminosities.A test patch placed on the grating's dark stripe appears lighter than one placed on the stripe with light color.White's illusion is an optical illusion highlighting the fact that the same target luminance can elicit various perceptions of brightness in differentWhite's illusion is a brightness illusion when specific stripes of a black and white grating is partially replaced by a gray rectangle.According to Novick, the Munker-White illusion is the cause of this distorted impression. Fundamentally, Novick claimed that the illusion is effective because "our acuity for shape is better than our acuity for color, which means that we see the shapes with more detail and the colors with less detail."Learn more about White's illusion here:
https://brainly.com/question/27400861
#SPJ1
Which electrical signal can allow for rapid long-distance communication within the nervous system?
Answer:
Which electrical signal can allow for rapid long-distance communication within the nervous system?
nerve action potential
If two organisms were locked in an antagonistic coevolutionary relationship, which one would win?
If two organisms were locked in an antagonistic co-evolutionary relationship the one who's generation time is shorter. It is the relation between males and females where sexual morphology changes over the time to counteract the opposite sex traits to achieve the maximum reproductive success.
Co-evolution does not necessarily require the presence of antagonism. The characteristics within group of unrelated species may converge to allow individual species to exploit valuable resources or increase protection.
Co-evolution is a reciprocal evolutionary change in set of interesting populations over the time resulting from the interaction between those population.There are some examples of co-evolution such as herbivores and plants and the relation between herbivores species and the plants that they consume.
To learn more about the unrelated species here
https://brainly.com/question/27151850
#SPJ4
In the early embryo what signals must occur together in the splanchnic mesoderm for cardiogenic mesoderm to be specified?
In the early embryo DKK, Crescent, Cerberus, FGF8, and BMP signals must occur together in the splanchnic mesoderm for cardiogenic mesoderm to be specified.
Through BMP and FGF signalling pathways, the underlying anterior endoderm specifies the cardiogenic mesoderm layer. The two cell groups are instructed by these signals to differentiate separately as they move anteriorly toward the gut tube.
The infolding of a surface layer known as the splanchnic (or ventral) mesoderm brings the two endocardial tubes together, where they merge. Recent research reveals that endogenous Wnt inhibitors such the Sfrp and DKK proteins are crucial in controlling the differentiation of cardiomyocytes.
Therefore, In the early embryo DKK, Crescent, Cerberus, FGF8, and BMP signals must occur together in the splanchnic mesoderm for cardiogenic mesoderm to be specified.
Learn more about mesoderm here:
https://brainly.com/question/11237908
#SPJ4
what is diffusion explain it
Answer:
Diffusion is the movement of a substance from an area of high concentration to an area of lower concentration . Diffusion occurs in liquids and gases when their particles collide randomly and spread out. Diffusion is an important process for living things - it is how substances move in and out of cells.
Explanation:
Diffusion is the movement of a substance from an area of high concentration to an area of lower concentration . Diffusion occurs in liquids and gases when their particles collide randomly and spread out. Diffusion is an important process for living things - it is how substances move in and out of cells.
X-gal is included in the growth medium on which cells transformed with bacterial plasmids are grown. The reason x-gal is included is to _______.
X-gal is included in the growth medium on which cells transformed with bacterial plasmids are grown. The reason x-gal is included is to identify bacteria that contain a recombinant plasmid.
What are cells?Cells are the basic building blocks of all living things. The human body is comprised of trillions of cells. They deliver structure for the body, take in nutrients from food, convert those nutrients into significance, and carry out technical functions.Cells are of two types: eukaryotic, which include a nucleus, and prokaryotic cells, which do not have a nucleus, but a nucleoid province is still present. Prokaryotes are single-celled organisms, while eukaryotes may be either single-celled or multicellular.They deliver structure for the body, take in nutrients from food, convert those nutrients into significance, and carry out technical functions. Cells also include the body's genetic material and can make duplicates of themselves. Cells have multiple parts, each with a separate function.To learn more about cells, refer to:
https://brainly.com/question/13920046
#SPJ4
A client states that ""she thinks"" her water has broken. which best provides confirmation of the rupture of membranes?
During pregnancy, your infant is surrounded and cushioned through a fluid-crammed membranous sac known as the amniotic sac. Typically, at the start of or at some point of exertions your membranes will rupture — additionally referred to as your water breaking.
If your water breaks earlier than exertions start, it's known as prelabor rupture of membranes (PROM). Previously it became referred to as untimely rupture of membranes. When your water breaks, you may feel damp in your perineum, have sporadic or continuous little leaks of watery fluid from your perineum, or experience a more pronounced flow of clear or pale yellow fluid.
Learn more about infant https://brainly.com/question/9389068
#SPJ1
How does biological catalysts operate? Discuss an example of a mechanism that can modulate the chemical reaction to go up or down depending on the prevailing conditions.
Enzymes, which are proteins that catalyst every chemical process that occurs in a live cell of any animal, are referred to as "biocatalysts."
Enzymes speed up the rate of chemical processes by lowering the activation energy but at a higher turnover rate than inorganic catalysts. Many biocatalysts function similarly to the one shown in the figure below. By momentarily connecting with the reactants, the biocatalyst combines them. As a result, the reactants can react with each other more readily and quickly as a result.
Conversion of glucose into ethyl alcohol is one such example. Ethyl alcohol and carbon dioxide are produced when the enzyme zymase breaks down glucose.
To learn more about biocatalysts click here
https://brainly.com/question/14953274
#SPJ4
Which component of the electrocardiogram represents the duration of ventricular contraction?
QRS complex refers to the combination of the Q, R, and S waves, and indicates ventricular depolarization and contraction (ventricular systole).
Ventricular rate can be calculated by determining the time interval between QRS complexes. The duration of the QRS complex is normally 0.06 to 0.10 seconds. This relatively short duration indicates that ventricular depolarization normally occurs very rapidly.
P QRS and T waves in electrocardiogram signifies the P wave in an ECG complex indicates atrial depolarization. The QRS is responsible for ventricular depolarization and the T wave is ventricular repolarization.
To learn more about ventricular depolarization , here
https://brainly.com/question/10577559
#SPJ4
what are the disadvantages of transgenic rabbits? glowing rabbits
The main evolutionary disadvantage of transgenic rabbits, in this case, is associated with the lack of adaptation that fluorescence will produce making them susceptible to predators.
What is adaptation?Adaptation is a slow evolutionary process where more adapted individuals are selected by differential reproduction and survival.
Fluorescent transgenic rabbits will be more susceptible to predators in natural populations, thereby they will have less adaptive fitness compared to normal rabbits.
In conclusion, the main evolutionary disadvantage of transgenic rabbits, in this case, is associated with the lack of adaptation that fluorescence will produce making them susceptible to predators.
Learn more about adaptation here:
https://brainly.com/question/1213023
#SPJ1
When observing the gel at the end of the run period, the dna band that is closest to the positive electrode is the.
Answer:
smallest in size
Explanation:
hopefully, this is correct and will help you
A human egg contains ________ chromosome and a human sperm contains ________ chromosome.
A human egg ---> 22 + X (23 chromosome)
A human sperm ---> 22 + X or 22 + Y (23 chromosome)
A group of biologists would like to recreate suitable habitats for wildlife in a particular area. they would also like to help fight climate change. to achieve these goals, the biologists decide to increase the density of trees and the canopy thickness in the area. which biodiversity restoration method should the biologists use?
The method the biologists should use is Reforestation.
What is Reforestation and how it is important?Reforestation is one of the land regeneration methods. It is a natural or a man-made process of replanting trees in a particular area. Normally, plants can grow independently due to dispersed seeds, but forest land gets degraded badly, so intentional reforestation needs to be done. This process has the following advantages:
It increases the density of trees in that area.
It increases the canopy thickness in that area.
It rebuilds a suitable habitat for wildlife.
It helps in fighting climate change.
It helps in bringing rain timely.
It helps in fighting environmental pollution.
To read more about reforestation visit here:
https://brainly.com/question/11356872
#SJ4
DNA is too important to leave the nucleus, so it
sends a messenger outside the nucleus with the
instructions to create proteins.
Who does DNA send as a messenger?
A. mRNA
B. nucleolus
C. ribosomes
D. nuclear envelope
Answer:
A.) mRNA
Explanation:
A.) is correct. mRNA is a single strand of RNA that is equipped with modifications that allow it to safety travel outside the nucleus to the ribosomes.
B.) is incorrect. The nucleolus is an organelle inside of the nucleus responsible for housing ribosome biogenesis process.
C.) is incorrect. The ribosomes are structures outside of the nucleus that receive the mRNA and translate its code into amino acids. In turn, this creates new proteins.
D.) is incorrect. The nuclear envelope is the lipid bilayer membrane that separates the nuclear/genetic material from the cytoplasm.
The gelatinous material found in the posterior cavity is the:________
a. aqueous humor.
b. tears.
c. vitreous humor.
d. perilymph.
e. ora serrata
The gelatinous material found in the posterior cavity is the vitreous humor.
The vitreous humor is a transparent, colorless, gel-like substance located in the posterior chamber of the eye. It helps maintain the round shape of the eye and can also help with vision clarity and shock absorbance.
Fluid fills most of the inside of the eye. The chambers in front of the lens (both the anterior and posterior chambers) are filled with a clear, watery fluid called aqueous humor. The large space behind the lens (the vitreous chamber) contains a thick, gel-like fluid called vitreous humor or vitreous gel.
To learn more about vitreous humor , here
https://brainly.com/question/17735805
#SPJ4
The rise in one species of bird limits the nesting space for other species is an example of interspecific, indirect competition.
*
2 points
True
False
Answer:
the answer of this question is True.
The statement is true because the rise in population of one species of bird limiting the nesting space of other species is an example of interspecific, indirect competition.
In interspecific indirect competition, the individual from two different species compete for shared resources.
During the interspecific indirect competition, two specie compete for the resources and the species which can exploit more resources in less time can win over this battle.
Interspecific competition is a way in which abiotic and biotic factors can interact to affect the structure of a community.
As speculated by Darwin, interspecific competition can limit the count of species in an ecosystem and helps in macroevolution. It also underlines the positive correlation between, extinction and origination rate.
The competition between organisms belonging to two different species is an example of interspecific competition and because the Organisms are not directly interacting, this will be categorized as indirect interspecific competition and therefore the given statement is true.
Learn more about Interspecific competition here:
https://brainly.com/question/31870930
#SPJ3
Blood typing is based on the presence of proteins known as __________ on the outer surface of the red blood cell plasma membrane
Blood typing is based on the presence of proteins known as antigens/antibodies on the outer surface of the red blood cell plasma membrane.
You can determine what type of blood you have by blood typing. Blood typing ensures that you can safely give blood and receive blood transfusions. Additionally, it checks to see if the Rh factor, which is found on the surface of red blood cells, is present.The four primary blood types are:
Type A Type B Type ABType OBlood group A – has A antigens on the red blood cells with anti-B antibodies in the plasma
Blood group B – has B antigens with anti-A antibodies in the plasma
Blood group O – has no antigens, but both anti-A and anti-B antibodies in the plasma
Blood group AB – has both A and B antigens, but no antibodies
learn more about Blood typing here: https://brainly.com/question/13496262
#SPJ4
