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Mamont248 [21]
3 years ago
9

How can scientists use fossils to see if a species has changed over time?

Biology
1 answer:
Lady bird [3.3K]3 years ago
5 0

Answer:

what u waiting for

Explanation:

lolllzzzz

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What blood vessels do nutrients pass through in order to reach the body's cells?​
jeka94

Answer:

Artery

Explanation:

Artery carries blood from the heart to other part of the body. While vein return the denourished blood to the heart via the ivc

5 0
3 years ago
Which of the following is true?
Arlecino [84]

During meiosis but not during mitosis, which of the following is true? __.

A haploid gametes are produced that are identical in their allelic composition

B the cytoplasm divides

C chromosomes line up in the center of the cell during metaphase

D genetic variation among the daughter cells is increased

E two identical daughter cells are produced

Answer:

D. genetic variation among the daughter cells is increased

Explanation:

Meiosis is a process where a single cell divides twice to produce four cells containing half the original amount of genetic information. Meiosis occurs in germ cells, as a result; genetic variation among the daughter cells is increased. These cells (germ cells) are our sex cells – sperm in males, eggs in females.

In meiosis, the haploid gametes that are produced are not identical in their allelic composition.

In prophase 1, the chromosome pair up.

During metaphase, The chromosome pairs line up next to each other along the center (equator) of the cell.

4 0
3 years ago
2 facts about the cytoplasm
masya89 [10]
<span>It is composed of water and other soluble ions. About 80% of the cytoplasm is water. It also contains dissolved carbohydrates, proteins and fats.

</span><span>It is a very good conductor of electricity.</span>
7 0
3 years ago
Recall what you know about nervous tissue to answer the following questions. Nervous tissue can generate and conduct ____ signal
Dimas [21]

Answer:

Nervous tissue can generate and conduct <u>electrical</u> signals that control the body.

Explanation:

The neuron is the specialized cell that provides function to nerve tissue. Given the structure of the neuron, this cell is capable of creating and conducting information in the form of electrical impulses or signals, by depolarizing its cell membrane and generating action potentials.

The information generated and transmitted by the neurons allows the nervous system to obtain internal and external information of the organism, as well as to control all the body functions.

<em>     The other options are not true because nerve tissue does not generate or conduct </em><em>thermal </em><em>or</em><em> chemical </em><em>signals to perform its function.</em>

5 0
3 years ago
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where in a stem cell of an embryo is the instructions for how to build organs?  a. ribosomes  b. endoplasmic reticulum  c. Go
Anna35 [415]

Answer:

. In the nucleus.

Explanation:

The information for all bodily functions resides in DNA in every cell.

5 0
3 years ago
Read 2 more answers
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