Ostriches don’t use their wings for flight, but they do use them for other functions, such as mating rituals and balance. many ancestors of ostriches did fly. what can you conclude about ostrich behavior from this information?
Maintaining osmolarity is important to the body because the membranes of most cell types are freely permeable to ____. anions water proteins cations mastering
Maintaining osmolarity is important to the body because the membranes of most cell types are freely permeable to water.
Water can pass through the membrane easily by a process like diffusion called as Osmosis.
The cell wall is freely permeable to water and nutrients since these are easily exchanged by the inner and the outer environment of the cell.
Osmolarity of the body is defined as the measure of substances that can be dissolved. If excess concentration is present then, osmolarity is also high.
Osmolarity of body increases whenever we are lacking water i.e. dehydrated and similarly osmolarity decreases when we have excess fluid in the blood.
Osmolarity increase causes a release of Anti diuretic hormones i.e. they control water level in the body. Osmosis play a vital role in the functioning of the reactions that are carried out in the body.
Learn more about Osmosis here, https://brainly.com/question/1799974
#SPJ4
__________ refers to deterioration of intellectual abilities caused by an organic brain disorder.
Dementia refers to deterioration of intellectual abilities caused by an organic brain disorder.
What is dementia?In dementia, a person loses memory, has trouble in reasoning and solving problems and other such symptoms which interfere in the normal activities of an individual. It is caused due to brain cell damage which hinders the brain cells in interacting with each other while generating responses.Dementia is not a distinct disease but is caused due to a variety of medical conditions especially Alzheimer’s disease.Symptoms can be managed by medications and therapy but there is no proper cure of dementia in later stages.Certain factors which increase the risk of dementia are smoking, diabetes, aging, alcohol abuse.A person even has difficulties in remembering the name of close ones.Learn more about dementia here:
https://brainly.com/question/7809599
#SPJ4
Professor basco is lecturing about the nervous system. he tells the class that the role of the pituitary gland is to make and release _____ into ______.
Answer:
The pituitary gland makes, stores and releases
hormones. The pituitary gland is located at the base of your brain below your hypothalamus
The main function of your pituitary gland is to produce and
release several hormones that help carry out important
bodily functions, including: Growth. Metabolism (how your
body transforms and manages the energy from the food
you eat). Reproduction.
What is an example of a virulence factor that is related to immune system evasion?
Example: The following TLR recognition avoidance, adhesins that impact immune response, and resistance to host defenses peptides and polypeptides are examples of aureus virulence factors involved in immune evasion in the early stages of infection.
Given the issues with S. aureus antibiotic resistance, studies of innate immune responses and their role against S. aureus are crucial in human and veterinary health.
These data are also required to create effective S. aureus vaccines or compounds since the bacterium can control the immune response.
What are Virulence Factors?The virulence factors affect a pathogen's capacity to harm or infect its host tissues.
These are frequently chemicals produced by the bacterium or virus and encoded in their genome, but they can also be ingested from the environment through genetic elements that are transmittable.
Because bacteria and viruses obviously differ in their makeup, their virulence factors can also be very different.
To learn more about Virulence factors from the given link
https://brainly.com/question/25803643
#SPJ4
The risk of schizophrenia among biological relatives is greatest for identical twins.
a. true
b. false
The risk of schizophrenia among biological relatives is greatest for identical twins. This is a true statement.
What is schizophrenia?Schizophrenia is a neurological disorder that causes an affected individual to lose touch of reality.
Schizophrenia can be caused by the following:
Genetics: Gene defects caused by mutation such as deletions or duplications of genetic material increases risk of schizophrenia.Environment: Urbanicity, migration, cannabis, childhood traumas, infectious agents, obstetrical complications and psychosocial factorsBrain chemistry and circuitBrain abnormalities: Impaired communication between brain regions leads to the associated symptoms and cognitive changes.According to research, the risk of schizophrenia among biological relatives is greatest for identical twins because they are genetically identical.
Learn more about genetics here:
https://brainly.com/question/851793
#SPJ1
What is the maximum number of white blood cells allowed in a leukocyte-reduced unit of red blood cells?
Answer:
8
Explanation:
What is the number of white blood cells permitted in a unit of leukoreduced red cells? 8 g/dL owing to chemotherapy with a drug known to cause bone marrow depression and immunodeficiency.
Photosynthesis: releases oxygen into the atmosphere. was prevalent during the first years of the earth's atmosphere. is carried out primarily by bacteria. releases carbon dioxide into the atmosphere.
this is true have a good day
What manages muscles and prevents injury by monitoring the rate of muscle contraction?
Golgi tendon organ manages muscles and prevents injury by monitoring the rate of muscle contraction.
What is the Golgi tendon organ? What is its primary function?
Sensory organs called Golgi tendon organs (GTOs) are found in the tendon next to the myotendinous junction. The Golgi tendon organ, which is located close to the point where a tendon joins a muscle, is a sensory ending that resembles a tree and is encased in a spindle-shaped connective tissue capsule.
The Golgi tendon organ is the sensory organ that determines how much tension the muscle is exerting when someone lifts weights. The Golgi tendon organ will prevent the muscle from producing any force (by a reflex arc) if there is excessive muscle tension, preventing you from harming yourself. Together, these monitor muscle length via the muscle spindles.
Learn more about the Golgi tendon organ here:
https://brainly.com/question/10778319
#SPJ4
What types of microorganisms are known as obligate intracellular parasites, meaning that they can live and multiply only inside an appropriate host cell?
Viruses are obligate parasites.
Why are viruses known as obligate parasites?A parasite is considered to be obligatory if it entirely relies on its host for habitat, sustenance, reproduction, and survival. It will eventually perish without the host. An organism that cannot reproduce without a host is said to be obligately parasitic. Holoparasite is another name for the obligatory parasite. Obligatory parasites include viruses. They are unable to procreate outside of live cells. They are hence regarded as obligatory intracellular parasites.
They infect a host cell to utilize its genetic resources for reproduction, protein synthesis, and energy production. The virus cannot thrive on culture media that is not alive. It needs functioning cells to maintain its metabolism and grow. It multiplies by independently forming each of its components using host machinery, then putting those components together to create viral particles. A virus is not irritable or mobile. For transfer from one host to another, it needs a vector.
Learn more about virus here:
https://brainly.com/question/26551567
#SPJ4
Diluting a pollutant over and
over until it is very difficult to
detect is known as which of
theses processes?
A. serial dilution
B. oxidation reaction
C. reduction reaction
D. incredible dilution
Pharmaceutical companies are increasingly interested in the orexin system. Which of these depressed patients would benefit most from an orexin-like drug?
Answer choices:
A patient who sleeps a lot but still feels tired in the morning
A patient who reports sluggishness and lethargy which impacts their daytime work
A patient who deals with extreme irritability and fear at everyday situations
A patient who thinks poorly of themselves and can't stop fixating on it
Pharmaceutical companies are increasingly interested in the orexin system for a patient who reports sluggishness and lethargy which impacts their daytime work
A syndrome when victims are unable to sustain regular levels of daytime wakefulness We have made significant advancements in our comprehension of the physiology and operation of the orexin system since these early foundational studies. For instance, the orexin system has been recognized as a crucial modulator of attention, arousal, reward, and neuroendocrine function. Notably, research on animals indicates that orexin function dysregulation is linked to neuropsychiatric conditions including addiction and mood disorders like despair and anxiety.
Learn more about Orexin: https://brainly.com/question/10607466
#SPJ1
In which type of nondisjunction could the two copies of a chromosome in a gamete be heterozygous?.
Gametes with two heterozygous copies of a chromosome may result from nondisjunction in either meiotic division.
What three types of nondisjunction are there?Nondisjunction can take one of three different forms: failing to separate a homologous pair of chromosomes during meiosis I; failing to separate sister chromatids during meiosis II; or failing to separate sister chromatids during mitosis.
How can you tell whether nondisjunction takes place in meiosis 1 or 2?Nondisjunction, which can lead to an aberrant amount of chromosome-bearing gametes, can happen during meiosis I and meiosis II. The primary distinction between nondisjunction in meiosis 1 and 2 is that whereas sister chromatids fail to separate in meiosis II, homologous chromosomes fail to separate during meiosis 1.What are mitotic and meiotic divisions?Mitosis and meiosis are the two distinct processes of cell division.When people talk about "cell division," they typically mean mitosis, which is the process of creating new cells for the body. The cell division process known as meiosis is what produces egg and sperm cells. A vital process for life is mitosis.learn more about Nondisjunction during meiosis here
https://brainly.com/question/14450336
#SPJ4
The dried pericarp that forms the peanut shell provides evidence that peanuts are?
Answer:
legumes
Explanation:
Which type of lipids are the most abundant in the plasma membrane?
a. phospholipids
b. glycolipids
c. sterols
d. triacylglycerides
Phospholipids type of lipids are the most abundant in the plasma membrane.
What is phospholipids?Phospholipids are a subclass of lipids that have two hydrophobic "tails" made of fatty acids connected by an alcohol residue, one of which is a hydrophilic "head" containing a phosphate group. Omega-3 fatty acids EPA and DHA are frequently incorporated into the phospholipid molecule of marine phospholipids.Phospholipids are compound lipids made of alcohol, fatty acids, nitrogen base, and phosphoric acids. These intricate lipids, which also give the membranes their fluidity, make up the majority of the cell membrane.A class of polar lipids known as phospholipids (PL) is made up of two fatty acids, a glycerol unit, and a phosphate group that is esterified to an organic molecule (X) like choline, ethanolamine, inositol, etc.Esters of glycerol, fatty acids, phosphoric acid, and other alcohols make up phospholipids. Phosphatidylcholine, phosphatidylethanolamine, phosphatidylinositol, and phosphatidylserine are the four most prevalent phospholipids.Learn more about phospholipid here:
https://brainly.com/question/3856949
#SPJ4
Which diagnostic test assesses blood flow in the retina after injection of a dye?
Fluorescein angiography is an eye test that uses a special dye and camera to look at blood flow in the retina and choroid.
A fluorescein angiogram looks at the blood vessels and the lining at the back of your eye (the retina). This test can pick up changes in the condition of your eyes. It can help the specialist make a diagnosis or tell them how well treatment is working.
Although commonly referred to as fluorescein, the dye used for fluorescein angiography is actually fluorescein sodium (C20 H10 Na2 O5). It is the water-soluble salt of fluorescein, also known as resorcinolphthalein sodium.
To learn more about Fluorescein angiography , here
https://brainly.com/question/13264839
#SPJ4
Unrepaired single-stranded dna breaks can lead to double-stranded dna breaks during the next round of replication. Which repair pathway would be most appropriate for repairing double-stranded dna breaks?.
Nonhomologous end joining would be most appropriate for repairing double-stranded DNA breaks.
How are double stranded breaks in DNA repair?Homologous recombination and nonhomologous DNA end joining are the two main mechanisms for mending double-strand DNA breaks, which often occur in eukaryotic cells.DNA ends that need to be repaired have a different chemistry as a result of the many causes of DSBs.The enzymes of the NHEJ pathway display a remarkable level of structural tolerance in the variety of DNA end substrate configurations upon which they may function over the course of NHEJ development.The nuclease, polymerases, and ligases of NHEJ are the most versatile and mechanistically adaptable enzymes in each of their classes in vertebrate cells.To learn more about double-stranded DNA breaks from the given link
https://brainly.com/question/10916913
#SPJ4
Landfills are advantageous for waste
disposal for many reasons. Which of the
following is an advantage of landfills?
A. They have cheaper disposal fees.
B. They are very expensive.
C. They are high maintenance.
D. They produce little to no smell.
Answer:
The correct option is A.
They have cheaper disposal fees.
A researcher has sequenced a gene that is present in two alleles. She has a mixture of both alleles and clones them into e. Coli using plasmids that contain the lacz gene. She is interested in one particular allele that is indicated in a disease. Using media containing x-gal, how can she select those colonies that have her allele of interest?.
She will have to sequence the plasmids of the white colonies before knowing which allele it contains.
What are plasmids?A plasmid is a tiny, circular, double-stranded DNA molecule that differs from chromosomal DNA in a cell. Plasmids are naturally found in bacterial cells and in certain eukaryotes. plasmid genes frequently confer genetic benefits to bacteria, such as antibiotic resistance. RNA plasmids are uncommon, and the majority of them are poorly understood. Plants, fungi, and even mammals have provided examples. Linear RNA plasmids are found in some strains of the yeast Saccharomyces cerevisiae. Similar RNA plasmids have been discovered in the mitochondria of various maize plant types.To learn more about plasmids from the given link
https://brainly.com/question/2088910
#SPJ4
Shiga toxin kills cells by preventing protein synthesis.
a. true
b. false
Bacterial and archaeal ribosomes are known as _________ ribosomes, based on their sedimentation coefficient.
Bacterial and archaeal ribosomes are known as 70s ribosomes, based on their sedimentation coefficient.
The process of making proteins in a cell takes place at an intercellular structure called a ribosome, which is formed of both RNA and protein. The messenger RNA (mRNA) sequence is read by the ribosome, which then converts the genetic code into a specific string of amino acids that develop into extended chains and fold to create proteins. As a compound of RNA and protein, a ribosome is also referred to as a ribonucleoprotein. It is made up of two smaller and larger subunits. The bigger subunit is where the amino acids are added, and the smaller subunit is where the mRNA binds and is decoded. Protein and ribonucleic acid are both present in both subunits.
To learn more about ribosomes please visit-
https://brainly.com/question/241631
#SPJ4
The most significant benefit of replacing human labor with automated labor is?
The most significant benefit of replacing human labor with automated labor is lowered wages and benefit costs.
Since automation is the foundation of the present economy, it makes sense to infer that automation will also shape the future. There seems to be a new research or opinion piece about the potential for robots and artificial intelligence to eliminate jobs every week.
Robotic machines perform repeated jobs that soon grow monotonous for people, which lowers errors.Robots are more accurate and can do tasks more quickly than humans labor.
Robots reduce expenses since they can operate continuously with the right maintenance and don't need all the added advantages that people do, such as healthcare, paid time off, sick days, and breaks.
To learn more about Robots click here
brainly.com/question/1287488
#SPJ4
which of the following statements is true about Charles Darwin? A. He supported Lamarck’s theory of evolution. B. He believed evolution occurred in each individual organism. C. None of these. D. He understood natural variation occurs from mutations in DNA.
Answer:
He supported Lamarck’s theory of evolution.
Charles Darwin was a scientist who discovered the theory of evolution. He understood that variation occurs through mutations, the correct answer is option D.
Natural selection, which he explained, explains how species change over time. Darwin understood that variation within a population is essential for evolution to occur, despite not having knowledge of DNA or genetics.
In "On the Origin of Species," Darwin outlined how variation within species results from random variations in individual traits. Future generations may inherit and carry on these variations. Positive variations in a population may increase in frequency over time, resulting in the emergence of new species.
Despite not knowing about DNA mutations, Darwin's understanding of variation laid the groundwork for our current understanding of genetics and the role that mutations play in driving evolutionary change.
Therefore, the correct answer is option D.
Learn more about natural selection here:
https://brainly.com/question/31054297
#SPJ3
Nature, allolactose serves as the inducer in the wild-type lac operon. for this experiment, you used iptg as the inducer. why is it so important to our experiment that iptg is not metabolized?
Nature, allolactose serves as the inducer in the wild-type lac operon. for this experiment, you used IPTG as the inducer. It is so important to our experiment that iptg is not metabolized the bacterial cells can't process IPTG since it is not the right substrate for the lactose metabolic pathways.
what is allolactose ?
A disaccharide like lactose is allolactose. Instead of the 1-4 linkage of lactose, it consists of the monosaccharides D-galactose and D-glucose joined through a 1-6 glycosidic linkage.
what is IPTG ?
A molecular biology tool is isopropyl d-1-thiogalactopyranoside. This substance is utilized to promote protein expression in situations where the lac operator controls the gene because it is a chemical mimic of allolactose.
Learn more about allolactose here:-
https://brainly.com/question/14191787
#SPJ4
Which ion species is a cell membrane (such as a neuron) most permeable to at rest (i. e. , resting membrane potential)?
The cell membrane is most permeable to potassium ions at the resting membrane potential.
What is resting membrane potential?The difference in the membrane potential between the inside of a cell and the outside of a cell is called resting membrane potential. This is usually 30 to 90 mV with the inside of the cell being more negative compared to the outside of the cell.
Because of the potential difference across the cell membrane, it is said to be polarized. In a condition where the membrane potential becomes more positive than the resting membrane potential, the membrane becomes depolarized. In a condition where membrane potential becomes more negative compared to the resting membrane potential, it becomes hyperpolarized.
All electrical signals used by the neurons are either due to depolarization or hyperpolarization from the resting membrane potential.
This resting membrane potential is determined by the movement of potassium ions across the membrane.
Read more about resting membrane potential, here
https://brainly.com/question/13397639
#SPJ4
HELP PLS!! (I NEED ANSWERS BY TOMORROW PLEASEEEE) Kerry was investigating how the angle of incidence of radiant energy on a surface affects the rate of temperature rise of the surface. A paper pocket holding a thermometer was placed near a lamp. The paper pocket was then placed at various angles so that the angle of incidence of the radiant energy varied. Kerry made sure the distance to the lamp was the same for each of his trials. The following table shows the data recorded by Kerry. Using the data, describe the relation between the angle of incidence and the rate of temperature change.
Answer:
Hey there!
Explanation:
This is ur answer....
Refer to the attached pics...Hope it helps!
Brainliest pls!
Have a good day!^^
For newborns, the penetration depth of safety lancets for blood collection must be?
For newborns, the penetration depth of safety lancets for blood collection must be 0.85 mm
Safety lancets are single-use, sterile instruments used to draw blood from capillaries. Healthcare professionals and lay consumers are the intended users, depending on the safety lancets type.
Blood collection is a procedure where blood is drawn from a vein using a needle, typically for laboratory testing. Phlebotomy can also be used to treat some blood problems by removing extra red blood cells from the blood. Blood collection is taken from donors so that it can be used for a variety of medicinal purposes.
To learn more about Blood collection please visit-
https://brainly.com/question/14420272
#SPJ4
What extended schleiden's hypothesis by suggesting that animal tissue was made up of cells?
Theodore Schwann extended Schleiden's hypothesis by suggesting that animal tissue was made up of cells.
What is the cell theory?The cell theory is the theory that states living things are composed of basic units of life called cells.
The cell theory was first developed by Schleiden who observed animals through a microscope.
The cell theory was then further developed by Theodore Schwann based on Schleiden's hypothesis.
The cell theory developed by Theodore Schwann states that:
All organisms are made of cellsCells are the basic units of life.All cells come from preexisting cells that have multipliedThis cell theory has been used to develop the modern theories about cells.
In conclusion, the cell theory is the theory which states that all living things are made up of cells and that cells are the basic unit of life.
Learn more about cell theory at: https://brainly.com/question/1594446
#SPJ1
What is the end result of each of these three major steps during cellular respiration?
The end result of each of these three major steps during cellular respiration are here:
Glycolysis - 2 molecules of pyruvic acid and 2 ATP.
Kreb's cycle - 6NADH, [tex]FADH_{2}[/tex], and 2 ATP and [tex]4CO_{2}[/tex].
Oxidative phospholyration - ATP and water.
What is Glycolysis?In the process of glycolysis, the six-carbon sugar molecule glucose is split into two molecules with three carbons (pyruvic acid). Two molecules of ATP are produced when the energy from the broken bonds is caught.What is Kreb's cycle?The three-carbon molecules produced by glycolysis are converted into carbon dioxide molecules by the Krebs cycle. ATP and NADH are produced as an electron donor via the Krebs cycle as well as glycolysis.What is oxidative phosphorylation?Water is created by combining oxygen with the hydrogen atoms of NADH in the electron transport chain. Energy is constantly being taken in during electron transit to create ATP. The procedure is occasionally referred to as oxidative phosphorylation since it needs oxygen.Learn more about cellular respiration here:
https://brainly.com/question/13721588
#SPJ4
Homozygous vs Heterozygous Alleles
