This diagram shows that embryos of certain species develop almost identically in the earliest stages of embryonic development. These physical similarities indicate that there are also genetic similarities among these organisms. The physical and genetic embryological similarities among these organisms suggest that they A. descended from a common ancestor. B. have multiple vestigial organs in common. C. are members of the same genus. D. hunt and breed in similar habitats.

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Answer 1
Answer: The correct option is A.
The observation that the embryos of certain species have physical and genetical similarities in the earliest stages of embryonic development shows that individual development of an organism shows its revolutionary history and this is taken as an evidence of common ancestry. Scientists takes this observation to mean that all life on earth developed from a single ancestor.

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Answers

it’s moral to preserve because you need to take care of there habitats instead of resorting them

Answer:talk about how fascinating Nature is in all of the good qualities it’s good to preserve nature for animals and to make the world last longer with things like pollution and go on from there

Explanation:

How do antibiotics help your immune system deal with infectious agents?

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Answer:

Explanation:

By killing bacteria

Antibiotics and the immune system are the two forces that cope with bacterial infections. ... Bacterial infection requires an effective answer from the immune system. Macrophages are the immune cells that first respond to bacterial infection, by recognizing, engulfing and killing microorganisms.

So basically, they kill bacteria.

Some of these steps are reversible and catalyzed by the same enzyme acting in either direction, glycolysis or gluconeogenesis. Which reaction steps are irreversible and require a different enzyme in gluconeogenesis than in glycolysis?

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Answer:

Explanation:

There are 3 irreversible steps in Gluconeogenesis that are catalyzed by different enzymes than in Glycolysis namely:

1) Conversion of pyruvate to phosphoenolpyruvate (PEP) catalyzed by pyruvate carboxylase.

2) Conversion of fructose-1,6-bisphosphate to fructose-1,6-phosphate catalyzed by fructose-1,6-phosphatase.

3) Conversion of glucose-6-phosphate to glucose by the enzyme glucose-6-phosphatase.

Calculate the mutation rate for achondroplasia, and express the rate as the number of mutant genes per given number of gametes.

Answers

Answer:

Explanation below

Explanation:

Mutation can be described or explained as a situation whereby there is a change in the make up of a gene thereby resulting to the formation of an entire gene which will be responsible for a new character.

The rate of mutation could be fast or slow, and that is referred to as the mutation rate.

The mutation rate for achondroplasia can be calculated by determining the number of new cases of the condition divided by the number of gametes produced in a given population. It is typically expressed as the number of mutant genes per given number of gametes. An example is provided to demonstrate how to calculate the mutation rate.

Calculating the mutation rate for achondroplasia

The mutation rate for achondroplasia can be calculated by determining the number of new cases of the condition divided by the number of gametes produced in a given population. Achondroplasia is caused by a mutation in the FGFR3 gene, and it is typically inherited as an autosomal dominant disorder. Therefore, the mutation rate can be expressed as the number of new mutant genes per given number of gametes.

Example:

If there are 100 new cases of achondroplasia in a population of 1,000,000 people, and each person produces an average of 1000 gametes, the mutation rate would be calculated as:

Mutation rate = (100/1,000,000) / (1000 x 1,000,000) = 0.0000001

So, the mutation rate for achondroplasia in this example would be 0.0000001, or 1 in 10 million gametes.

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The cell cycle of yeast cells grown in the nutrient-poor environment is approximately what percent of the cell cycle of yeast cells grown in the nutrient-rich environment.

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The cell cycle of yeast cells grown in the nutrient-poor environment is approximately 168 % of the cell cycle of yeast cells grown in the nutrient-rich environment. Hence option 1 is correct.

What is cell cycle?

Cell cycle is defined as the cascade of cellular activities that lead to cell division into two daughter cells. The primary purpose of the cell cycle is to accurately divide the enormous amount of DNA found in the chromosomes into two daughter cells that are genetically identical. A cell spends the majority of its time in what is known as interphase, where it develops, duplicates its chromosomes, and gets ready to divide.

The interphase and M-phase are the two phases that make up the cell cycle. About 90% of the cycle is made up of interphase, during which the cell develops and copies its chromosomes in order to divide. Undifferentiated ESCs have a G1 and S cell cycle percentage of 15-20% and 60–70%, respectively, however as the ESCs differentiate, this ratio changes.

Thus, the cell cycle of yeast cells grown in the nutrient-poor environment is approximately 168 % of the cell cycle of yeast cells grown in the nutrient-rich environment. Hence option 1 is correct.

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Answer: 168

Explanation:

How many days does each lunar phase last? Explain your claim with reasoning.

Answers

Answer:

29.5 Days.

Explanation:

The Moon takes 27.3 days to orbit Earth, but the lunar phase cycle (from new Moon to new Moon) is 29.5 days.

7 days…because g.o.o.g.l.e said so.

I actually don’t know the reasoning but it’s definitely 7 days total.