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Nadya [2.5K]
3 years ago
13

By comparing fossils in higher sedimentary layers with fossils in lower sedimentary layers scientists can learn which of the fol

lowing
Biology
1 answer:
Artemon [7]3 years ago
3 0
Scientists can learn, which types of organisms were more common during time periods, how species have evolved over time, and the relative age of different species. Sedimentary rocks can contain fossils because, unlike most igneous and metamorphic rocks, they form at temperature and pressures that do not destroy fossil remains. Dead organisms can become sediments which may, under the right conditions, become sedimentary rocks. 
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How can independent assortment help explain genetic diversity in humans? Hint: How many pairs of chromosomes are in a human dipl
Agata [3.3K]

Answer:

please give me brainlist and follow

Explanation:

Independent assortment states that all alleles are inherited independently of other alleles. This helps diversity because it helps to further the randomization of traits. If traits were always inherited together, as a "package deal", there would naturally be less diversity than the situation that exists.

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3 years ago
In a relatively small iguana population the allelic frequency is tracked for three generations. Webbing is a recessive allele; n
arsen [322]

Answer:

The answer is C

Explanation: The random change in the gene pool is due to genetic drift. Remember, genetic drift occurs at a more rapid rate when the population size is reduced. The flood is a random occurrence. It could have as easily been a drought.

4 0
3 years ago
Read 2 more answers
Draw the structure of DNA aand write a short note about it.​
artcher [175]

Answer:

DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code.

Explanation:

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4 0
3 years ago
Ovulation is triggered by peak concentrations of which peptide secreted into the blood A. estrogen B. LH C. ACTH D. FSH E. proge
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Ovulation is triggered by peak concentrations of luteinising hormone peptide secreted into the blood, which is option B.

<h3>What is ovulation?</h3>

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The luteinizing hormone is released in by the pituitary gland of the brain, which triggers the ovulation.

Learn more about ovulation at: brainly.com/question/6748709

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5 0
2 years ago
When trying to determine the evolutionary relationship between two species, would a biologist concentrate on homologous features
Lerok [7]
A biologist would most likely concentrate on homologous features to find and analyse an evolutionary relationship between two species, finding homologous traits between species might help biologists to understand the evolution of animals, whereas concentrating on analogous features might help to compare the evolution of different species. Hope this helped!
3 0
3 years ago
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