How can fossils help us understand the Earth's history?

Biology

1 answer:

qaws [65]3 years ago

5 0

Answer: By studying fossils, we can tell how long someone has been on the earth for.

Explanation: We can easily learn where they lived, how they lived, and their past.

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SIZIF [17.4K]

Answer:

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Explanation:

6 0

3 years ago

What is the function of the nucleus? A. Builds proteins B. Stores the cell's glucose C. Stores the cell's DNA D. Produces energy

Nataliya [291]

<h3>Appropriate Answer:</h3>

$\large{ \boxed{ \bf{ \pink{Stores \: the \: cell \: DNA(C)}}}}$

Nucleus is the control centre of the cell and manages all the cellular activities taking place inside the cell. It consists of four parts :-

Nuclear membrane,
Nucleoplasm,
Chromatin material and
Nucleolus.

The Chromatin material(Condensed - Chromosome) stores the cell's DNA which is transmitted to next generation.

7 0

3 years ago

Read 2 more answers

In summer squash, white fruit color (W) is dominant over yellow fruit color (w) and disk shaped fruit (D) is dominant over spher

dangina [55]

Answer:

Genotypic ratio = 16 WwDd: 0

Phenotypic ratio = 16 white, disk shaped fruit : 0 yellow, sphere shaped fruit

Explanation:

This question involves two different genes coding for fruit color and fruit shape respectively. The allele for white fruit color (W) is dominant over yellow fruit color (w) and disk shaped fruit (D) is dominant over sphere-shaped fruit (d).

According to this question, If a squash plant pure-breeding for white, disk shaped fruit (WWDD) is crossed with a plant pure breeding for yellow, sphere shaped fruit (wwdd), the following gametes will be produced by each GAMETE:

WWDD - WD, WD, WD, WD

wwdd - wd, wd, wd, wd

Using these gametes in a punnet square, all of the offsprings will have genotype WwDd, which is phenotypically white and disk shaped fruit.

The genotypic ratio is 4 WwDd: 0

The phenotypic ratio is 16 white, disk shaped fruit : 0 yellow, sphere shaped fruit.