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nexus9112 [7]
3 years ago
12

The oldest known fossils are ______ years old and resemble formations made by ______. Multiple choice question. 2.5 billion; cya

nobacteria
Biology
1 answer:
Lostsunrise [7]3 years ago
6 0

Answer: The question is not complete as options are not complete , the remain part are;

A. 3.7 years, photosynthetic bacteria.

B. 3.7 years cyanobacteria.

The correct option is

3.7 billion years old, cyanobacteria and stromatolite.

Explanation:

This is because cyanobacteria is the oldest fossil to exist and they have been in existence for about 3. 7 billion years. These cyanobacteria photosynthesized because they have thread like chlorophyll filament, they produce food through the process of photosynthesis which is needed for their survival and they release oxygen as bye product.

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Answer:

Option D- frequency of the heterozygous qenotype

Explanation:

In the Hardy-Weinberg equilibrium , 2pq stands for the genotype frequency of heterozygotes (Aa) in a population at the state of equilibrium. dominant homozygotes (AA) is represented by the p-square and q- square represents the recessive homozygotes (aa) frequency. p represents the allele frequency of A Allele and q stands for the allele frequency of the allele a. Summation of the terms gives an equal to 1(100%). The sum of all of these terms is always equal to due to the fact that the 3 frequencies in the equation are the available or possible allele combinations.

Hardy-Weinberg is relevant for it helps us in comparison of a population's actual genetic structure as time goes on along with the genetic structure we are to get if really population was in Hardy-Weinberg equilibrium state that is population was not evolving.

3 0
3 years ago
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Which of the following is a reasonable explanation for why unsaturated fatty acids help keep any membrane more fluid at lower te
vladimir1956 [14]

Answer:

Option (E).

Explanation:

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Thus, the correct answer is option (E).

4 0
3 years ago
Which of the following best compares the male and female reproductive structures of a gymnosprem
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Answer:

gymnosperms produce male cones and female cones, and the pollen from a male cone fertilize the egg inside a female cone

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7247.acellus.com/StudentFunctions/Interface/acellus_engine.htmlClassID=11402
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What is the average air speed velocity of a laden swallow?
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Answer:

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Explanation:

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