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2 years ago

10

A student hypothesizes that a sample of rock formed from ocean sediments. which would best help the student support this hypothe

sis?

1 answer:

Ad libitum [116K]2 years ago

7 0

The answer is would be -- Clam shells found within the rock sample.

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The Hardy-Weinberg principle states that evolution will not occur in a population when environmental conditions are stable. When

Serga [27]

Mutation and migration violate the Hardy Weinberg Principle as they will cause evolution in the population.

Explanation:

The Hardy-Weinberg Principle has five assumptions:

No random mating in population, no mutation, no natural selection, population is large and no flow of gene. These are the conditions in which no evolution takes place.

Migration will cause gene-flow which is a causative of evolution.

Gene flow is movement of genes in or out of the population as individuals migrate. The migrated population will have new alleles or those already existing will have different ratios than the population they entered. Thus, gene flow causes evolution.

Mutations are the changes at genetic level. They are strong enough to change the gene and alleles and are causative of Genetic variation. This will lead to evolution which is in disparity with Hardy-Weinberg Principle.

These two events will affect the Hardy-Weinberg principle by causing evolution which is not accepted in the principle. Population will drift from Hardy Weinberg population.

8 0

3 years ago

DNA replication occurs prior to meiosis and _________. mitosis cytokinesis transcription 2. Adenine with Thymine and Cytosine wi

Thepotemich [5.8K]

Answer:

1. Mitosis

2. Bases

3. Hydrogen

Explanation:

1. DNA replication occurs prior to meiosis and <u>mitosis</u>.

<em>mitosis - cytokinesis - transcription</em>

In cell division, DNA synthesis and replication is carried out during the S phase, in the interphase, a stage that occurs before mitosis and meiosis.

2. Adenine with Thymine and Cytosine with Guanine are known as the nitrogen <u>bases</u> in DNA.

<em>bonds - bases - amino acids</em>

Nucleic acids (DNA and RNA) are composed of nucleotides that contain nitrogenous bases:

<em>DNA: adenine (A), guanine (G), thymine (T), and cytosine (C).</em>

RNA: <em>adenine (A), uracil (U), guanine (G), and cytosine (C).</em>

<em />

3. <u>Hydrogen</u> bonds form and hold the DNA together.

<em>hydrogen - peptide - polar</em>

The complementary nitrogen bases are held together by hydrogen bonds:

<em>A=T (adenine pairs with thymine)</em>

<em>C=G (cytosine pairs with guanine)</em>

3 0

3 years ago

Another name for a fertilized egg is a(n) ____________. Choices: fetus.. gamete.. ova.. zygote..

zepelin [54]

<span>Another name for a fertilized egg is a zygote. The correct option among all the options that are given in the question is the last option or the fourth option. The other three options given in the question is not correct and can be avoided. I hope that the answer has come to your help.</span>

4 0

3 years ago

The long band of nerve fibers that connects the brain's hemispheres is:

deff fn [24]

The answer is Corpus callosum. The largest structure of the human brain, consisting of the two cerebral hemispheres connected by the corpus callosum and covered by the cerebral cortex. Corpus callosum is a long, thick band of nerve fibers that connects the left and right hemispheres of the brain and allows communication between them. Development of the CC makes communication between the hemispheres more efficient.

7 0

3 years ago

At her initial evaluation, Ms. Jones reports that she has lost 25 pounds over the past eight months despite an increase in her a

sergeinik [125]

Answer:

d. hyperthyroidism

Explanation:

Hyperthyroidism is a condition that occurs when the thyroid gland in our body secretes too much of the thyroxin hormone. Thyroid gland is a butterfly shaped gland that is located in our neck and it produces the hormone called thyroxin. Excess production of thyroxin leads to a condition named hyperthyroidism.

A person's metabolism increases when he or she is suffering from hyperthyroidism. One's weight is lost but the appetite increases. Other symptoms are extreme fatigue, irritability, heart palpitations, sweating and puffy eyes.

Thus in the context, Ms. Jones is suspect to have hyperthyroidism as she she is showing all the above symptoms.

3 0

3 years ago