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Students are using cubes to model how surface area to volume ratio impacts cellular homeostasis. The students have created two models of equal size. Model A is one solid cube. Model B is a cube composed of nine smaller cubes. Each cube represents a cell. Which cube would have difficulty maintaining homeostasis?
A) Model A because the larger surface area to volume ratio of the cell makes moving
nutrients and waste into and out of the cell more difficult.
B) Model B because the smaller surface area to volume ratio of the cells makes
moving nutrients and waste into and out of the cells more difficult.
C) Model B because the larger surface area to volume ratio of the cells makes
moving nutrients and waste into and out of the cells more difficult.
D) Model A because the smaller surface area to volume ratio of the cell makes moving nutrients and waste into and out of the cell more difficult.

The statement about the code is non-overlapping, assuming "standard translation" a given base participates in the specification of one and only one amino acid is true.

The genetic code is а set of rules defining how the four-letter code of DNА is trаnslаted into the 20-letter code of аmino аcids, which аre the building blocks of proteins. The genetic code is а set of three-letter combinаtions of nucleotides cаlled codons, eаch of which corresponds to а specific аmino аcid or stop signаl.

There аre 64 possible permutаtions, or combinаtions, of three-letter nucleotide sequences thаt cаn be mаde from the four nucleotides. Of these 64 codons, 61 represent аmino аcids, аnd three аre stop signаls. Аlthough eаch codon is specific for only one аmino аcid (or one-stop signаl), the genetic code is described аs degenerаte, or redundаnt, becаuse а single аmino аcid mаy be coded for by more thаn one codon. It is аlso importаnt to note thаt the genetic code does not overlаp, meаning thаt eаch nucleotide is pаrt of only one codon-а single nucleotide cаnnot be pаrt of two аdjаcent codons.

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Answer:

-Predators

-Disease

-Weather

Explanation:

Squirrels population can be decreasing because they are being hunted by predators.

Disease can be spreading through the forest.

The forest can have harsh weather, making population for squirrels decrease.

Answer:

ATP (Adenosine tri-phosphate)

its an important molecule found in all living things. Think of it as the "energy currency" of the cell. If a cell needs to soend energy to accomplish a task, the ATP molecule splits off one of its three phosphates, becoming ADP ( Adenosine di-phosphate) + phosphate

Answer:

The main carbohydrate fuel molecule burned by all living things is glucose.

Explanation:

Glucose is a simple sugar that is a major source of energy for cells in the body. It is transported through the bloodstream and is taken up by cells, where it is broken down through a process called cellular respiration to produce ATP, the primary energy molecule used by the body. Glucose is the primary fuel for the brain and the nervous system, and it is essential for the proper functioning of all living organisms.

Answer:

The organisms that parasitize humans include fungi, leeches, lice, viruses, protozoa, tapeworm, etc. Few organisms such as Helminthes live inside the intestine of the host and causes several infectious diseases, such as jaundice, malnutrition, diarrhoea, etc.

Answer:

i think b

Explanation:

Compared to many other animals, including our closest evolutionary relative, the chimpanzee, humans genome have significantly less genetic variety.

African, Genetic research almost universally shows that African populations are more diverse (Figure 1), supporting the idea that modern humans had African origins.

Genetic diversity is mostly caused by mutations. A mutation is a long-lasting change to a DNA sequence. De novo (new) mutations happen when a mistake in DNA replication occurs and is not fixed by DNA repair enzymes. Humans' propensity for multi-step processes and their capacity to transmit learned information from one generation to the next are two possible explanations.

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Answer:

The cornea

Explanation:

Some organic molecules, including amino acids, could have been produced form chemical reactions on early Earth conclusion about the origin of like on Earth is most strongly supported by the Miller-Urey experiment.

What is Miller-Urey experiment?

The Miller-Urey experiment, also known as the Miller experiment or Miller experiment, is a well-known chemistry experiment that mimicked the atmospheric conditions that were thought, in 1952, to exist in the early, prebiotic Earth in order to test the theory of the chemical origin of life under those conditions. Water (H2O), methane (CH4), ammonia (NH3), hydrogen (H2), and an electric arc were all employed in the experiment (the latter simulating hypothesised lightning).

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The statement which best describes the atoms of gas neon is that they move freely in all directions and is therefore denoted as option B.

This is referred to as the smallest particle of a chemical element that can exist and the combination of two or more atoms is referred to as a molecule and they are involved in chemical reactions.

The gas which is referred to as neon falls under the group of noble gases and they have a stable octet configuration which makes them unable to bond with others and the gas state of matter also makes it that they move freely in all directions which is why it was chosen as the correct choice.

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The altering DNA of organisms result harmful consequences.

DNA is a flexible and dynamic molecule. As a result, due to a process known as mutation, the nucleotide sequences found therein are liable to change.

It is commonly known that genetic alterations can affect how a protein behaves in the body, possibly leading to health issues. Researchers have found that modifications to non-gene-containing sections of DNA (noncoding DNA) can also cause disease.A mutation is a change to an organism's DNA sequence. Errors in DNA replication during cell division, exposure to mutagens, or viral infection can all cause mutations.

Hence, altering DNA of organisms result untreatable diseases.

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Altering an organism's DNA has detrimental consequences. DNA is a flexible and dynamic molecule. As a result, the nucleotide sequences within them can change through a process known as mutation.

It is well known that genetic alterations can affect the behavior of proteins in the body and cause health problems. have found that changes in can also cause disease. A mutation is a change in the DNA sequence of an organism. Errors in DNA replication during cell division, exposure to mutagens, or viral infections can cause mutations. Therefore, modifying the DNA of an organism leads to untreatable diseases. Genetic alterations include chromosomal abnormalities and genetic mutations. Chromosomal abnormalities commonly occur during cell division. They can be numerical, including the number of chromosomes, or structural, including atypical configurations of one or more chromosomes.

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Noble gas is  only group of elements that do not form ions and are found as monatomic atoms in nature .

Monoatomic elements are elements which are stable and are single atoms. Hence, chemical elements that are stable single atom molecules at standard temperature and pressure are noble gases. Examples include helium, neon, argon, krypton, xenon, and radon.

Noble gases are relatively inert or nonreactive. They also exist as single atoms instead of molecules. Reason behind their inert, or nonreactive nature ,is  because their s and p orbitals are filled. So, they do not form ions or compounds.

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The environment in which the moth lived was uncontaminated. This made dark moths rare. As the areas where bright moths were found became more polluted there were fewer bright moths in polluted/dark areas.

Light moths began to evolve after they could no longer survive in the dark forest. To protect themselves from predators, they began to blend into darkened and polluted areas. To study bird predation on moths directly, Dr. Kettlewell's bright and dark moths on tree trunks were where he could observe them.

He noted the number of times birds found moths. He found that birds on dark logs were twice as likely to eat light moths than dark moths. was found to selectively hunt Therefore, the evolution of dark-colored bodies provided a survival advantage in contaminated areas. He finds that light moss camouflage in dark forests is not working. Dark moths live longer in dark forests, giving them more time to breed.

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Movement of substances across a cell membrane without using energy is called active transport is false.

This refers to the process by which molecules or ions move across a cell membrane from a region of lower concentration to a region of a higher concentration, that is against the concentration gradient. Active transport needs cellular energy to achieve this movement.

Typical examples of active transport are as follows the uptake of glucose in the intestines in humans and the uptake of mineral ions into root hair cells of plants.

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Because cells with damaged DNA are not triggered to die. Because cell growths and divisional is no longer-term regulated by p53 proteins.

Deoxyribonucleic acid is the  polymer composed of two by  polynucleotide chains and  that id  coil around to each other to form a double by  helix. The polymer and carries genetic instructions for the development, functioning, growth and reproduction of all known by  organisms and many viruses. DNA and ribonucleic acid are nucleic acids.

 The p53 protein is involved in DNA repair and in triggering cell death when repair is not possible. The are some cancers associated with defective p53 genes  Because cells with damaged DNA are not triggered to die. Because cell growths and divisional is no longer-term regulated by p53 proteins.

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The percentage for the given pedigree is 98.6%.

What are homozygous?

Homozygous, in the context of genetics, refers to having inherited the same version (allele) of a genomic marker from each biological parent. Therefore, a homozygous for a genomic her marker has two identical versions of her for that marker. In contrast, an individual who is heterozygous for a marker has her two different versions of that marker.

homozygous. In diploid species, he has two alleles for each trait or gene on each pair of chromosomes at the same site or locus. one from the father and one from the mother. An allele is one of two or more alternative forms of a gene, found at the same location on the chromosome. Homozygotes refer to identical alleles at a particular locus.

Therefore, The percentage for the given pedigree is 98.6%.

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The structure whose abnormal function is associated with Parkinson's disease is the Basal ganglia.

When nerve cells in the basal ganglia, a region of the brain that regulates movement, are damaged or killed, it results in the most noticeable signs and symptoms of Parkinson's disease. Dopamine is a crucial brain chemical that is normally produced by these nerve cells or neurons.

Parkinson's disease (PD) is a progressive condition that affects the brain's motor neuron cells, which control how the body moves. Tremor, sluggishness, stiffness, and balance issues are symptoms of dying dopamine-producing neurons. Treatments emphasize symptom relief to free up more energy for action.

The basal ganglia and the substantia nigra, two deep regions of the brain, are affected by the degenerative, progressive disorder known as Parkinson's disease (PD).

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A brief summary of what discoveries that occurred in  each year in relation to the studies about  DNA is given as follows:

Deoxyribonucleic acid (DNA) is a polymer made up of two polynucleotide chains that coil around one another to create a double helix. The polymer contains genetic instructions for all known organisms and viruses' genesis, functioning, growth, and reproduction. Nucleic acids include DNA and ribonucleic acid.

The information molecule is DNA. It holds instructions for the production of larger molecules known as proteins. These instructions are kept within each of your cells and are dispersed across 46 lengthy structures known as chromosomes. These chromosomes are composed of thousands of shorter DNA pieces known as genes.

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False. The new plant produced by layering does not have to remain attached to the stem of the original plant.

Layering is a method of vegetative propagation of plants in which a part of a plant such as a stem or a branch is pegged to a substrate for that part to develop its own root and establish before it is eventually cut off and transplanted to become a new plant.

Layering can be done in 5 ways. These include

Whatever the method that is used, the new plant only remains attached to the original plant for some time after which it is usually detached or cut off to become an individual plant on its own.

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Answer: it’s false I think?

Explanation: I hope this helps!!!

Answer:

Water logging in is a phenomenon in which " Soil root zone becomes saturated due to over-irrigation."

Explanation:

Waterlogging is the natural flooding and over-irrigation that brings water at underground levels to the surface. As a consequence, displacement of the air occurs in the soil with corresponding changes in soil processes and an accumulation of toxic substances that impede plant growth.

Endochondral Ossification , The process of bone production known as endochondral ossification involves the central primary ossification center with subsequent secondary ossification centers.

In this procedure, bone is used to replace hyaline cartilage. During endochondral ossification, hyaline cartilage is replaced with bone tissue. In this way, the majority of the bones in the skeleton are created. Endochondral ossification bones are what they are known as secondary ossification. Future bones are first created in this phase as models made of hyaline cartilage. Chondrocytes multiply quickly and release an secondary ossification extracellular matrix to create the cartilage that serves as the model for bone. Chondrocytes create a blueprint for the hyaline cartilage diaphysis in long bones.

The complete question is :

Which bone development process involves a central primary ossification center with subsequent secondary ossification centers?

a. Intramembranous Ossification

b. Intermembranous Ossification

c. Interchondral Ossification

d. Endochondral Ossification

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Skeletal muscles act on the bones and joints to power movement.

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Answer:

Norepinephrine

Explanation:

Norepinephrine gets released by postganglionic neurons of the sympathetic nervous system, which binds to and activates adrenergic receptors.

The structure of a sponge is fundamentally very different from that of all animals because sponges lack true tissues.

Sponges belong to the Phylum Porifera. These organisms are generally marine. Most of them are asymmetrical. They are primitive multicellular animals and they exhibit a cellular level of organization. Sponges do not have true tissues unlike all other animals.

A water transport or canal system is a prominent feature in a sponge. Water enters through tiny pores known as ostia in the body wall into a central cavity and is moved outwards through the osculum. This water transport system aids sponges in nutrition, respiration as well as removal of wastes.

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The piece of artwork is the result of the skeletal system working.

The skeletal system serves as the body's framework and facilitates movement when our muscles contract. When the body requires certain minerals, including calcium and phosphorus, they are released from storage and enter the body.

Additionally, the skeletal system makes blood cells and shields interior organs. This skeleton system's interactions are what led to the creation of this piece of art.

Therefore, the skeletal system's operation produced the piece of art.

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The function which the nucleus would perform is THE BIG BOSS!! (CEO)  The boss controls all of the activity inside the cell.

The nucleus plays a number of crucial roles. It controls cellular processes including protein synthesis and cell division since it includes genetic material. The nuclear envelope, nuclear lamina, nucleolus, chromosomes, and nucleoplasm are some of the anatomical components that make up the nucleus. Control over a cell's genetic makeup and, consequently, an organism's inherited traits. The nucleus often appears as a sizable, black organelle at or near the centre of a cell when it is histologically stained. The nucleus controls the synthesis of proteins and enzymes, regulates cell division and growth, stores DNA, RNA, and ribosomes, controls the transcription of mRNA into proteins, and produces ribosomes.

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vestibular structure, a sensory organ in the inner ear  serves as a balance to maintain a sense of equilibrium and orientation in space

Hearing is made possible by the ear, a sensory organ that detects sound waves. The vestibular system, which is located inside the inner ear, is also crucial to our ability to maintain our balance. The two otolith organs, the utricle and the saccule, and three semicircular canals make up this structure.  Small hair cells can be found in each of the semicircular canals' final spaces. Ampullae is the term for these voids. The inner ear moves with the head every time we turn it.

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Answer: Formation of ATP

Explanation:

ATP is formed by an inorganic phosphate molecule held in high-energy thus you answer would be Formation of ATP.