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777dan777 [17]
2 years ago
10

Describe how the ancestors of whales moved from the land to the sea.

Biology
1 answer:
Natalija [7]2 years ago
4 0

Answer:

To swim, they move their tails up and down, rather than back and forth as fishes do. This is because whales evolved from walking land mammals whose backbones did not naturally bend side to side, but up and down.

Explanation:

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How are the daughter cells produced by meiosis<br>different from those produced by mitosis?​
pav-90 [236]

Answer:

In mitosis, the daughter cells have the same number of chromosomes as the parent cell. But, in  while meiosis, the daughter cells have half the number of chromosomes as the parent.

The daughter cells produced by mitosis are identical, whereas the daughter cells produced by meiosis are different because crossing over has occurred.

Explanation:

6 0
3 years ago
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* Apply Concepts A particular plants diploid number of chromosomes is 50. Describe the number of chromosomes in one of the plant
Gnoma [55]

Chromosomes have hereditary function that are capable of self-duplication and they have thread-like structures seen inside the nucleus of plant and animal. In plants, they go through a cycle called alteration of generation that has multicellular stages. One is sporophyte that is a diploid, and the other is gametophyte with a haploid.

Moreover, spores are produce through meiosis so it go through a process of chromosome reduction in order to create a haploid spores. While, gametes undergo mitosis and the structure is already a haploid, which means that the number of chromosomes will not change in order to produce haploid. In this case, the plant have both spores and gametes and the similarities is that, they are both singles celled and a haploid. Therefore, the number of the chromosome in the gametophyte generation is also 32.

3 0
3 years ago
Can someone help me please
Ostrovityanka [42]

Answer:

J) Providing information to form proteins

Explanation:

Messenger RNA (mRNA) is the molecule that links genes to proteins. Efficient and smooth interactions of the molecules of life allow us humans to function well. ... This process is called gene expression.

4 0
2 years ago
Which life cycle describes a plant that reproduces asexually and sexually? A. egg + sperm → embryo → adult with all its chromoso
Minchanka [31]
Life cycle describes a plant that reprodueces asexually and sexually.
4 0
2 years ago
Why do some leaves turn from green to red, orange, or yellow in the fall?
11111nata11111 [884]

Answer:

Chlorophyll Breaks Down

Explanation:

because of changes in the length of daylight and changes in temperature, the leaves stop their food-making process. The chlorophyll breaks down, the green color disappears, and the yellow to orange colors become visible

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