Can we consider a duck as an amphibian?

Answer:

The cell theory demonstrated by the graph above is that all cells come from pre existing cells.

If some mice have inherited a genetic mutation that causes them to have a band of white fur around the middle of their bodies, it is most likely that an ancestor of these mice also had the same genetic mutation that caused the band of white fur.

Genetic mutations are changes in DNA sequence that can be inherited by offspring from their parents. If a mutation passed down from the parent to its offspring, then next generations will also have the same mutations. The white fur band presence suggests that the mutation for this trait has been inherited through multiple generations of mice.

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Answer:

The nervous system is made up of the central nervous system and the peripheral nervous system

Explanation:

The central nervous system includes the brain and spinal cord. The peripheral nervous system includes the nerves that run throughout the whole body.

The most likely explanation for the decrease in the density of gas particles in a section of Earth's atmosphere is that the air pressure in that section of the atmosphere decreased.

Density is defined as mass per unit volume. In the case of a gas, density is directly related to the number of gas particles (molecules or atoms) present in a given volume. When the air pressure decreases, it means that there are fewer gas particles exerting force per unit area. As a result, the density of gas particles in that section of the atmosphere decreases.

Air pressure is the force exerted by the gas particles on the walls of the container or the surroundings. It is influenced by several factors, including temperature, altitude, and the presence of other gases. Changes in these factors can cause fluctuations in air pressure. For example, if there is a decrease in temperature, the gas particles lose kinetic energy, which leads to decreased pressure and density.

It is important to note that the total number of gas particles in Earth's atmosphere does not necessarily change significantly over short periods of time. The atmosphere is composed of a vast number of gas molecules, and while there may be variations due to natural processes, such as volcanic eruptions or biological activities, these changes are relatively small compared to the overall composition of the atmosphere.

Therefore, the most likely explanation for the decrease in density of gas particles in a section of Earth's atmosphere is a decrease in air pressure, which can occur due to various factors such as weather systems, changes in altitude, or movement of air masses.

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Answer:

Correct answer is option A.

The example of elemental carbon is diamond and it is pure form of carbon. Thus, option A is correct.

Elemental carbon is pure form of carbon and it does not contain other elements and present in natural form. Due to this reason it is known as elemental.

In elemental form pure atoms are not attached to any other atom. Example is diamond which is allotrope of carbon in which there is only carbon atom attached to each other.

Methane and proteins are compounds consist of a combination of carbon and other elements and they are not come in category of elemental carbon.

Therefore,the example of elemental carbon is diamond and it is pure form of carbon. Thus, option A is correct.

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Explanation:

Deoxyribonucleic acid (DNA)is a molecule composed of two polynucleotide chains that coil around each other and growth is the increase of size in a child while development is the process in which a child develops his or her skills

Answer:

this is an answer of your que. ok

Explanation:

abiotic components of an ecosystem are the climate, soil, water, minerals, sunlight, precipitation and other non-living elements that sustain life in the ecosystem. Water, carbon dioxide and sunlight are used by plants to produce food in many ecosystems.

If a cytosine base is substituted for by a thymine base in a DNA segment during DNA replication, the sequence could code for the wrong amino acid during translation.

The change in the sequence of DNA is known as mutation.

When a base substitution occurs in the sequence of a DNA during replication, the genetic information in the region where the substitution occurred becomes compromised.

During transcription, the process of encoding genetic information on DNA into RNA, the base substituted is also transcribed along. If cytosine is substituted by thymine, adenine is transcribed instead of guanine.

During the translation of the genetic codes, the wrong amino acids might end up being translated due to the substituted base, leading to a faulty protein.

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Answer:

1. The sequence could code for the wrong amino acid during translation.

2. DNA unzips between the base pairs.

3.The human body uses 20 amino acids to form all types of proteins.

4. Cystic fibrosis is caused by a deletion of one codon in the DNA molecule.

5. Precise traits can be chosen to produce viable organisms more quickly.

6. fur with black hairs

7. 25%

8. there is not enough information to know whether a mutation would be harmful

9. Punnett squares are used to predict all possible allele combinations and their frequencies in offspring.

10. yellow

11. viral DNA or RNA copied by a host cell

12. A provirus is viral DNA incorporated into the host cell’s DNA.

13. It possesses a viral genome that mutates very quickly.

14. It copies the information for reproduction from RNA back into DNA.

15-19 writing on your own

Explanation:

We can see here that in order to write a research report on a pathogenic bacterium, here is a guide:

The findings of a study or investigation carried out by researchers are presented in a formal document known as a research report.

Remember to include the following in your report:

In academic and scientific settings, research reports are frequently used to convey research findings to other academics, researchers, and industry professionals.

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For translation elongation in each strain:

Translation elongation is a process of protein synthesis where the nascent polypeptide chain of the organism is extended by one amino acid during a specific cycle.

Wild type strains with GUA-tRNA will recognize a normal UAC codon in A site unlike the mutant strain but they will both have peptide bond formation occurring in the site.

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Answer:

A-

I think it's A because populations of organisms are naturally and the same species living in the same area at the same time.

a is an example of the same species in the same area living at the same time.

please correct me if I'm wrong.

True: The first division of meiosis reduces the number of chromosomes in each cell by half. False: Crossing over and synapsis occur after the homologous chromosomes separate in meiosis.

The daughter cells from meiosis I go through a division process in meiosis II that is strikingly similar to mitosis. The first division of meiosis results in a halving of the chromosome count in each cell. These aspects of meiosis are true. During the initial round of cell division, known as meiosis I, homologue pairs split apart. Sister chromatids split apart during meiosis II, the second round. Crossing over, which occurs in meiosis I, is the process in which homologous chromosomes exchange pieces.

The cells produced during meiosis I are the ones that go through meiosis II. Even though these cells are haploid and only have one chromosome from each homologous pair, they nonetheless have two sister chromatids. The sister chromatids split during meiosis II, creating haploid cells with non-duplicate chromosomes. In meiosis II, the cells generally go into a mitosis for haploid cells, and thus the number of chromosomes is not reduced but is constant.

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I believe they are both false><

1. the north polar constellation can be seen in the southern hemisphere.

"As viewed from the North Pole, all fully visible constellations north of the celestial equator are circumpolar, and likewise for constellations south of the celestial equator as viewed from the South Pole."

2. the south polar constellation can be seen in the northern hemisphere.

"The southern constellations Carina, Centaurus, and Crux are found circling the south celestial pole and can be seen from southern latitudes at any time of year while remaining invisible for observers in most northern locations."

Hope it helps

Answer:

The pH of water is neutral.

Explanation:

It is neutral because the concentration of hydronium ions equals that of hydroxide ions. It is higher than the pH of acids and lower than the pH of bases.

Answer:

Interphase is the portion of the cell cycle that is not accompanied by gross changes under the microscope, and includes the G1, S and G2 phases. During interphase, the cell grows (G1), replicates its DNA (S) and prepares for mitosis (G2). A cell in interphase is not simply quiescent.

Explanation:

Answer:

shedding leaves on a yearly cycle

Answer:

shedding leaves on a yearly cycle

Answer:

Consult a doctor, nurse or a qualified health professional.

Explanation:

Doctors and Nurses are professionals in this field. From the options listed they are the only people who could give you valid information on your health. Getting your information from other sources could lead you to being misinformed, and that could have detrimental effects.

Answer:

Explanation:

To solve this problem, let's represent the heterozygous yellow-seeded plant as "Yy" and the homozygous yellow-seeded plant as "YY."

i. When crossing a heterozygous yellow-seeded plant (Yy) with a homozygous yellow-seeded plant (YY), we can set up a Punnett square to determine the possible offspring genotypes:

    Y     Y

y   Yy  Yy

y   YY  YY

ii. The genotypic ratio is 2:2 or 1:1 for the possible offspring genotypes: Yy and YY.

The phenotypic ratio is also 2:2 or 1:1 for the possible offspring phenotypes: yellow-seeded (YY and Yy).

Question 2:

To determine the probability of specific outcomes, we need additional information about the parental genotypes and their inheritance patterns. Please provide the genotypes of the true breeder from F1 and the non-true breeding yellow-seeded plant for a more accurate calculation.

Answer:

Explanation:DNA extraction is isolation of DNA from the cell

First of all lysis solution is a buffer solution that serves the purpose of breaking those open cells in the experiment of DNA extraction .

Lysis solution is mainly buffer and ionic salts,they create isolated environment for the components of the cell.

The lysis solution contain more than one salt.This salt develops ionic strength in the solution.

Scientists use labs to Design and Carry out experiments.

Answer:

1. Study

2. Design; Carry

Answer:

fossil fuels.

Explanation:

Coal, crude oil, and natural gas are all considered fossil fuels because they were formed from the fossilized, buried remains of plants and animals that lived millions of years ago.

Answer:

Cellular respiration, the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and discarding, as waste products, carbon dioxide and water.

Explanation:

Answer:

The main function of cellular respiration is to synthesize biochemical energy. Cellular respiration is essential to both eukaryotic and prokaryotic cells because this biochemical energy is produced to fuel many metabolic processes, such as biosynthesis, locomotion, and transportation of molecules across membranes.

pls mark me the brainliest

Answer:

The inner mitochondrial membrane contains proteins involved in the electron transport chain. This chain releases energy that is then used to generate an electrochemical gradient, which is subsequently used to synthesize ATP

Explanation:

Mitochondria are membrane-bound organelles that have an inner membrane separated from an outer membrane by the intermembrane space. Moreover, the mitochondrial matrix is located within the inner membrane. The inner mitochondrial membrane contains proteins involved in the electron transport chain and ATP synthesis. Oxidative phosphorylation (electron transport chain) is the third stage of cellular respiration in aerobic organisms in which ATP is generated by transferring electrons from NADH or FADH2 to O2 by a series of electron carriers located in the inner mitochondrial membrane. The trans-membrane complexes of electron carriers are multiprotein enzyme complexes (I–V) and electron carriers (i.e., coenzyme Q10 and cytochrome c) required for the communication between complexes. The electron transport chain is coupled to proton transfer from the matrix out to the intermembrane space, thereby generating a proton gradient which is then used by ATP synthases to synthesize ATP​.

Answer:

c.  extremely rapid cooling

Explanation:

Answer: ribosomes

Explanation:

Answer:

the last one , the second to last one and the first one I am pretty sure

A, C and D are the student-Drawn Cell Models  that Contain Two Chromosomes.

Every cell in your body has DNA, which is the form in which your genetic code is stored. It creates your body's manual of operations. Each cell's nucleus contains chromosomes, which are structures that resemble threads and contain the DNA molecule.

A chromosome is referred to be a "homologous chromosome" if it has a similar genetic makeup but also includes replication-induced variations. Sister chromatids are the two halves of a certain chromosome that are joined at the centromere. Chromosomes known as "replication chromosomes" arise after the cell has undergone the process of DNA replication to prepare for cell division.

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