Answer:
They have an independent structure
The statement that is true of a typical animal is they lack a cell wall. The correct option is c.
What is a cell wall?The cell wall, which is located next to the cell membrane, also known as the plasma membrane, is the outer layer of a cell. As was already mentioned, all plant cells as well as those of fungi, bacteria, algae, and some archaea contain a cell wall.
All animals have multicellular cells, which make up an animal cell. Animal cells are distinguished primarily by the absence of a cell wall.
Animal cells lack elements like vacuole and chloroplast that are found in plant cells. Animal cells contain cell organelles like mitochondria, endoplasmic reticulum, ribosomes, and nuclei, which house the animal's genetic material.
Therefore, the correct option is c. They lack a cell wall.
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The six classes of essential nutrients are proteins, carbohydrates, vitamins, fats, water, and ______.
the evolution of populations due to chance is
Genetic drift describes the evolution of a population due to chance
Allele frequencies of a population can shift over generations due to genetic drift, a process of evolution (sampling error).
A population's allele frequencies can shift from generation to generation owing to random events, which is known as genetic drift. In more precise terms, genetic drift is a change that results from "sampling error" while choosing the alleles for the following generation from the gene pool of the current generation. All populations experience genetic drift, but its consequences are sometimes more pronounced in small populations.
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Select the correct answer from each drop-down menu.
In some cases of head injuries, the cerebrum may be affected. This type of injury could cause a loss of
and impaired.
box #1
breathing regulation
reflexive movement
voluntary movement
box #2
heart rate
involuntary movement
speech
In some cases of head injuries, the cerebrum may be affected. This type of injury could cause a loss of breathing regulation and impaired involuntary movement.
What is the main function of cerebrum?The cerebrum, which is the biggest component of the brain, controls temperature as well as initiating and directing movement. Speech, perception, thinking and reasoning, issue, emotions, and learning are all made possible by different regions of the cerebrum.
What is the cerebrum's structure?The two hemispheres and their cerebral cortices, which are the outer layers of grey matter, as well as the underlying areas of white matter make comprise the cerebrum. The olfactory bulb, striatum, and hippocampal regions are some of its subcortical structures.
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The complete question is-
In some cases of head injuries, the cerebrum may be affected. This type of injury could cause a loss of--------- and impaired ----------.
box #1
breathing regulation
reflexive movement
voluntary movement
box #2
heart rate
involuntary movement
speech
which light microscope technique below is good for small, unstained specimens like single living cells or cell monolayers and makes highly transparent objects more visible?
Light microscope technique below is good for small, unstained specimens like single living cells or cell monolayers and makes highly transparent objects more visible
The light microscope is a tool for seeing an object's minute details. This is accomplished by using a succession of glass lenses to first focus a light beam onto or through an object, then convex objective lenses to expand the image created.
The optical microscope, often known as a light microscope, is a type of microscope that typically makes magnified images of small objects using visible light and a set of lenses.
The most well-known and often used research equipment in biology is arguably the light microscope, so named because it uses visible light to find tiny objects.
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Difference between micro organism and organisms
Microorganisms are the microscopic organisms including microscopic organisms, archaea, protozoa, green growth, organisms, infections, and multicellular creature parasites (helminths). They can be either unicellular or multicellular and prokaryotes or eukaryotes. Additionally, they live in different kinds of environments. Of these microorganisms, archaea are prokaryotes, particularly living in outrageous conditions; a portion of these incorporate methanogens, halophiles, thermophiles, psychrophiles, and so on. In any case, protozoa are unicellular eukaryotes that acquire supplements through ingestion. Their cell wall is comprised of cellulose. Likewise, a few protozoans incorporate beats, ciliates, amoeboid, sporozoans, and so on.
An organism refers to a living thing that has a coordinated construction, can respond to upgrades, repeat, develop, adjust, and keep up with homeostasis. A life form would, in this manner, be any creature, plant, growth, protist, bacterium, or archaeon on the planet.
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what term is used to describe instances in which the expression of a gene is determined by whether it is inherited from the mother or the father?
The variable expression of genetic information depending on whether it was inherited from the mother or the father is known as genomic imprinting. Most autosomes express both the maternal and paternal alleles.
The variable expression of genetic information depending on whether it was inherited from the mother or the father is known as genomic imprinting. Most autosomes express both the maternal and paternal alleles. Genes are silenced by the process of genomic imprinting, which uses DNA methylation. While the active allele is unmethylated, the repressed allele is methylated. This stamping procedure, known as methylation, is a chemical reaction that joins little molecules known as methyl groups to certain DNA regions. In addition to neurodevelopment and postnatal development, it is crucial for the growth of the embryo, fetus, and placenta. Due to distinct epigenetic tagging on the parental allele during gametogenesis, the parental allele's specific expression is caused. Imprinting influences cloning of humans by modifying young children to copy and obey their speech. Methylation is a broad, straightforward, and crucially important biochemical process in the body that helps control the function of our circulatory, nervous, reproductive, and detoxification systems.
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Why did the Silurian period end?
Answer:
a series of exinction event led to climate change
Explanation:
i hoped this helped
Netta kicks a soccer ball with a mass of 0.5 kg It accelerates at a rate of 5m/s2. Doctor Banks kicks a bowling ball with a mass of 5 kg. It accelerates at 2 m/s2. What are the forces of the two balls?
Answer:
8 pounds
Explanation:
as per Newtons law F = ma where F is the applied force, m is the mass of object and a is the acceleration.
How might pesticide resistant insects affect your life? Explain.
Which of the examples given has made the most beneficial adaptation in your opinion? Explain.
Which organism has developed the best adaptation for defense? Explain.
Assume, in humans, a bacteria were to become antibiotic resistant. How might that affect your life?
pls
The answers include the following;
Pesticide resistant insects can affect life by resulting in more prevalence of diseases and death.Thick scales and skin is the most beneficial adaptation in my opinion because a deviation from the normal temperature will result in death.The organism which has developed the best adaptation for defense is porcupine due to its quills which prevents it from being attacked.If in humans, a bacteria were to become antibiotic resistant then it will most likely lead to increase in death rate.What is Adaptation?These are the changes which occurs in the body structure of organisms and makes it better suited for the environment thereby increasing growth and survival.
The porcupine for example has quills which is an adaptation for defense and prevents attack by other predators and organisms. Drug resistance will lead to increase in death rates as drugs will become ineffective.
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When two amino acids join together, the amine group of one binds to the acid group of another in a unique type of chemical bond. What is the name of this bond?.
Answer:
pipetide bond
Explanation:
two amino acids are always joined together by a pipetide bond
During each heartbeat, about 80 g of blood is pumped into the aorta in approximately 0. 20 s. During this time, the blood is accelerated from rest to about 1. 0 cm/s. What is the average net force on the blood during this time?.
The average net force on the blood during this time is 0.4 N.
Mass of blood, m = 80 g = 0.08 kg
Travel time, t = 0.2 sec
Velocity of blood, v = 1 m/s
Average blood force during a heartbeat is calculated by applying Newton's second Laws of Motion:
F = Ma
F = mv/t
F = 0.8 x 1 / 0.2
F = 0.4 N
Average force is equal to the mass of an object multiplied by the object's average velocity over a defined period of time. The force equation is defined by Newton's second law of motion. The force exerted by an object is equal to its mass times its acceleration F = m ⨉ a. To use this formula, you must use SI units. Newtons are used for force, kilograms for mass, and 2 meters per second for acceleration. There is an average force over a period of time and an instantaneous net force on the object.
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what are the structural features of a nucleoside?
Nucleoside structure consists of a purine or pyrimidine base and ribose or deoxyribose sugar are linked by a -glycosidic link in nucleosides.
Structures of RNA (ribose sugars) and DNA (deoxyribose sugars) are linked to these compounds. A glycosidic bond connects the anomeric carbon of a nucleoside to the N9 of a purine or the N1 of a pyrimidine in a nucleoside.
Nucleosides are significant biological molecules. In all living things, nucleosides are responsible for encoding, transmitting, and expressing genetic information. A variety of cancers and viral infections are treated clinically with synthetic nucleoside analogs.
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Whoever help me first I’ll make you brainliest I promise
The rate of photosynthesis can also be affected by ____. If it is too hot or too cold, ____ will happen more slowly. Moving plants to a warm greenhouse with a high concentration of ____ can help to increase the rate of photosynthesis.
Answer:
1: Temperature
2: Photosynthesis
3: Carbon Dioxide
hope it helps, I'd appreciate a brainliest :D
Inadequate intake of essential amino acids may lead to?
Your body will break down muscle fibres if you don't get enough amino acids from the protein-rich foods in your diet to make new proteins when you need them.
sends the amino acids to the cells that have a greater immediate requirement for protein. Muscle wasting is a possibility over time.
Organic substances known as amino acids have both functional groups for amino and carboxylic acids. Alpha-amino acids, which make up proteins, are by far the most common amino acids in nature despite the fact that there are hundreds of them. A protein has at least one lengthy polypeptide in it. Less than 20–30 residue polypeptides are typically referred to as peptides rather than proteins and are occasionally referred to as oligopeptides.
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Meiosis and mitosis are different types of division in human cells. Compare the two processes by referring to where each takes place and the kind of products that are made. (3-5 sentences)
Meiosis and Mitosis are both forms of cell division.
However, meiosis differs from mitosis in that it produces sex cells whereas mitosis produces somatic cells.
Meiosis occurs in the gonads while mitosis occurs in other body cells.
What are the similarities as well as differences between meiosis and mitosis?Cell division refers to the process by which the cells divide and produce new cells.
There are two forms of cell division, namely:
meiosis andmitosisMeiosis is a form of cell division in which the chromosome number is halved as four daughter cells are produced from a single cell that divides.
Meiosis results in the production of sex cells which are haploid cells.
Meiosis occurs in the sex cells.
Mitosis is a form of cell division that results in the production of two daughter cells from a single parent cell.
In mitosis, the chromosome number is not halved, rather the cells produced are diploid cells.
Mitosis occurs in the somatic or body cells.
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a neuron's ability to generate action potentials depends
A neuron's ability to generate action potentials depends on the sodium entering the axon upon reaching the threshold and the opening of voltage-gated sodium channels.
Neurons are the cells in the brain that transmit instructions and information throughout the body and brain. Action potentials are electrochemical signals that travel the length of the neuron, and carry the information.
When an initial depolarization reaches a threshold, action potentials are triggered. When the inward sodium current is greater than the outward potassium current, this threshold potential occurs. It can be anywhere from 15 millivolts to the resting membrane potential of the cell. The membrane potential is depolarized by the net influx of positive charges carried by sodium ions, which causes voltage-gated sodium channels to open more. A positive feedback cycle that drives the membrane potential to a very depolarized level is brought about by the increased inward current supported by these channels, which results in further depolarization.
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What glucose control plays a role in human body?
The liver is an important organ for maintaining proper blood glucose levels. Glycogen, a multibranched polysaccharide of glucose found primarily in the liver and skeletal muscle, is how glucose is stored by the body.
Blood glucose is largely regulated by pancreatic endocrine hormones, a beautiful hormonal balance achieved via a negative feedback loop. Pancreatic hormones that affect blood glucose levels include insulin, glucagon, somatostatin, and amylin. The glucose control solution is a liquid that contains water, glucose, buffers, and microbicides. These ingredients are essential for developing a solution that has the following properties: It contains a glucose concentration that can be used to test the functionality of your meter and test strips.
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How do cells move in a solution?
For cell transport, diffusion is the movement of small molecules across the cell membrane. The difference in the concentrations of the molecules in the two areas is called the concentration gradient. The kinetic energy of the molecules results in random motion, causing diffusion.
Explanation:In a hypertonic solution, the net movement of water will be out of the body and into the solution. A cell placed into a hypertonic solution will shrivel and die through a process known as plasmolysis.
Which labels would correctly model photosynthesis?
A:
B:
C:
D:
E:
Answer:
I don't know
Explanation:
Can't see the photos or answer options.
Photosynthesis: happens within chloroplasts, which are found in most plant cells. Inside this chloroplast, there are sacs called thylakoids. Chlorophyll, a light-absorbing molecule captures solar energy from light; most likely the sun. The captured energy is then converted into ATP and NADPH molecules, also known as chemical energy. The molecules then give off high-energy electrons, and the electrons then move through electron carrier proteins within the thylakoid membrane. The protein within the electrons pumps hydrogen ions into the thylakoid from the surrounding gel-like fluid inside the chloroplast called stroma The hydrogens that get pumped from the electrons then build up within the thylakoid space. The hydrogen ions move back to the stroma through a protein channel. The electron transport chain picks up high-energy electrons and hydrogen ions to form NADPH. The molecules then are able to carry high-energy electrons to the second stage of photosynthesis. As mentioned, chlorophyll molecules release high-energy electrons. The electrons then traveled through an electron transport chain and were then stored in NADPH molecules with hydrogen ions. For this to repeat the electrons and hydrogen ions must be replaced. A water-splitting enzyme removes electrons for the water molecules and then supplied them to the chlorophyll molecules. In doing so, the water molecules split apart into oxygen molecules and hydrogen ions. The ions and chlorophyll are now available for future cycles of light-dependent reactions. The oxygen is released into the air, ending the photosynthesis process.
A simple explanation: The plant cells convert solar energy(sunlight) into food with the help of H20(water) and C02 (carbon dioxide) in turn in this process the plant releases oxygen.
Hope this helps you choose your answer. :)
What types of organisms uses hydrogen sulfide for reducing power?
Purple sulfur bacteria uses hydrogen sulfide for reducing power.
Purple sulfur bacteria are a type of Proteobacteria that can photosynthesise. They are anaerobic or microaerophilic organisms that are commonly found in hot springs or stagnant water. They do not produce oxygen because, unlike plants, algae, and cyanobacteria, they do not use water as a reducing agent. Instead, they use hydrogen sulfide, which is oxidized to produce elemental sulfur granules. This can then be oxidized to produce sulfuric acid. Purple sulfur bacteria are classified into two families: Chromatiaceae and Ectothiorhodospiraceae, which produce internal and external sulfur granules and have different internal membrane structures.
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In which type of joint are the bones separated by a narrow, fluid-filled, encapsulated space?.
synovial joint are the bones separated by a narrow, fluid-filled, encapsulated space.
What is synovial joint?
Synovial joints enable motion. A thin layer of tough, smooth articular cartilage covers the surfaces of the bones where they come together to form a synovial joint. The two sides of the two cartilage-covered bone are separated and lubricated by a very thin layer of slick, viscous joint fluid known as synovial fluid.
The most typical joint in mammals is a synovial joint, which provides more range of motion for articulating bones than other joints like synarthroses, sutures, syndesmoses, or gomphoses. Anatomically, a synovial joint is a solid organ made up of bone marrow cells of all sorts, articular cartilage, synovium, perichondrium, and subchondral bone.
Hence the correct answer is synovial joint.
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Please help me determine the phenotype for each of these.
In Mendelian genetics, dominant alleles are represented with capital letters meanwhile, recessive are represented in lowercase, also it doesn't specify if it´s complete dominance, or incomplete dominance, therefore, we will assume the most basic case: complete dominance. That is to say when there is a dominant allele (capital letter) the trait shown will be the one that the dominant allele has, the recessive trait will only be shown in absence of the dominant trait, so there will have to be two lower case letters.
List of traits, alleles, and phenotype.
Eyes (Ee): Two small eyes
Eye Color (rr): white eyes
Skin Color (Bb): Blue skin
Tail shape (CC): Curly tail
Tail color ((PP): Purple tail
Tail (Tt): Have tail
Teeth (SS): Sharp teeth
Feet (Ff): Feet with four toes
Horn Color (Ww): Purple horns
Ear shape (Yy): Pointy ears
Ears (Nn): No ears
Claws (Ll): Long claws
Finally, it is coded the color and/or shape for ears and tail, however, is also coded if has or not ears and tail, so in this case says it has no ears (Nn), in that case, the character for ear shape is irrelevant because there are no ears, in this particular case, if you would have obtained a monster with ears that character makes all sense.
The rough endoplasmic reticulum is?
A.an intracellular double-membrane system to which ribosomes are attached
B.an intracellular membrane that is studded with microtubular structures
C.a membranous structure found within mitochondria
D.only found in prokaryotic cells
Answer:
B
Explanation:
This is what it is
I just did this in class and this is what it is
PLSSS HELP IF YOU TURLY KNOW THISS
Answer:
b
Explanation:
if I'm wrong than a but I'm 98% sure about b
the combining form for skull is _____________.
Answer: The combining form for skull is crani/o.
Cranio refers to combining the form of a skull especially covering the brain.
What is a skull?In order to symbolize the term cranium, or the skull, specifically the portion that covers the brain, the combining form "Cranio-" is employed as a prefix.
It is regularly used in medical terminology, particularly in anatomy, sometimes referred to as the braincase the cranium is the portion of the skull that houses the brain.
The cranium is made up of facial bones and cranial bones, which surround and guard the brain spinal cord connects to the brain through a hole at the bottom of the skull.
Therefore covering the brain Cranio is a combined form of the skull made of certain facial bones.
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according to class discussion, how does mutualistic behavior (mutualism) improve fitness?
Mutualistic behavior improve fitness by giving direct benefit to the giver and the receiver of help, giving an immediate adaptive advantage.
What is mutualism or mutualistic behavior?
Mutualism or mutualistic behavior is a term in biology that means association between organisms of two different species in which both species benefits. Mutualistic arrangements are most likely to develop between organisms with widely different living requirements.The fitness of both species involved in a mutualistic interaction is increased by the interaction. An example of a mutualistic interaction is the partnership between nitrogen-fixing bacteria and leguminous plants.
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what would be the expected result when the area around an oncogene is hypomethylated?
A decrease in the epigenetic methylation of DNA's cytosine and adenosine residues is known as hypomethylation (plural hypomethylations) in the field of genetics.
Cancer-related genes for the testicles include S100A4, mesothelin, claudin4, trefoil factor 2, PGP9. 5, POMC, and the heparinase gene. Other genes with hypomethylation and transcriptional activation are those for the testicles and trefoil factor 2. Classical oncogenes may be affected by gene region hypomethylation, which could contribute to oncogenesis, but research points to a greater involvement in the activation of genes involved in tumor invasion or metastasis. Hypomethylation, or decreased methylation, is a characteristic of tumor cells that can increase the activity of oncogenes. As tumors develop from benign neoplasms to malignancy, hypomethylation rises.
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I need help with these questions
1.)During replication, sequence of nucleotides that would bond with the DNA sequence TATGA .Correct option is b.)
b) ATACT
2.)When a cell divides, identical copies of DNA are passed along to each new daughter cell. The copying of DNA during cell division is called replication. Following is not a step of replication. Correct option is d)
d.) Old bases reattach to one another and new bases attach.
3.)During replication, 2 identical DNA molecules are produced from one original molecule. Statement that explains why the newly formed molecules are identical to the original. correct option is option c.)
c.)Each strand of original molecule serves as a template for the 2 new strands and new nucleotides are added to the template according to the pairing rule.
4.)A sample of DNA contains 10% cytosine. The % of remaining nitrogenous bases is ; correct option is a.)
a.) Guanine 10%,Thymine 40%, and Adenine 40%
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If you look at neurons through a microscope and draw detailed pictures of their structures, whose scientific career are you most likely emulating?
Magnitude Estimation is a psychophysical procedure in which participants rate the perceived strength of a stimulus and assign numerical estimates to it.
The smallest observable difference between two stimuli, or the smallest change in a stimulus that may be appropriately assessed as different from a reference stimulus; this is also known as the difference threshold. MRI has become a standard tool in current neuroscience research because it allows for the correlation of brain structure (as determined by a structural, rather than a functional, MRI scan) and function in people. When a signal + noise distribution (SN) is detectably different from a noise distribution (N), the two distributions are separated by a distance termed d' (d-prime).
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