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2 years ago

An example of mitosis at work is a leaf

Biology

1 answer:

DIA [1.3K]2 years ago

4 0

The right answer is Growing.

Mitosis is the cell division that allows an equal distribution of genetic information from an initial mother cell to two daughter cells while retaining the karyotype over the cell generations.

Mitosis will ensure - sometimes unfortunately - the good fulfillment of several phenomena:

1. embryonic development,

2. the general growth of organisms from birth to adult size,

3. the continued growth of certain organisms and / or organs; for example, trees, hair, teeth in ruminants, nails, ...

4. to renew dead cells; for example skin cells, red blood cells, ...

5. to ensure healing,

6. to preserve cellular identity during the development and renewal of cells belonging to the same organs, tissues, ...

7. As a result of disorders: cancers

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A protein has been used by comparative molecular biologist to show the evolutionary path of how organisms did what things in reg

Anit [1.1K]

Answer:

Cytochrome C; it provides evidences that there is similarities in the respiratory pathways for producing ATPs by all living organisms especially mammals.

Explanation:

Cytochrome c is located in the intermembranes of mitochondria, and it functions in the transfer of of one electron in electron transport chain,(ETC) needed for generation of proton motive force; for generation of energy in the synthesis of ATPs by ATPase synthase during chemiosmosis. Its allows oxdation-reduction by the switching of its iron ii to iron iii. during electron transports.However its iron atoms does not undergo oxidation with oxygen. This feature makes it stable and an ideal carrier of electrons.

Its amino acid sequences is very similar in all living organisms especially between mammals(e.g man and chimpanzees)with little variation in few amino acid residues due to mutation.This similarity in its amino acids sequences in all living organism together with small molecular size makes it ideal molecular evidence for studying comparative molecular evidence of evolution.

This is because it can be used to trace the pathways of respiration to synthesize energy, and therefore to conclude that most organisms share common ancestry, since a very similar protein sequence in a structure(Cytochrome c) participated in unique ETC mechanisms in all, needed for energy synthesis .

5 0

2 years ago

The softest mineral is _____ with a hardness of _____.

Solnce55 [7]

The softest mineral is talc with a hardness of 1 Mohs scale.

4 0

2 years ago

Most fungi are able to reproduce both asexually and sexually. Describe when asexual reproduction occurs and when sexual reproduc

snow_tiger [21]

Answer:

Asexual reproduction is through the formation of asexual spores. They are produced by one parent only and are genetically identical to that parent (Mitosis).

Sexual reproduction in the fungi has three stages plasmogamy, karyogamy, and meiosis.

Explanation:

AR: Spores may be dispersed by moving water, wind, or other organisms. The spores far from the parent organism. This helps to ensure that the offspring will not have to compete with the parent for space or other resources.

SR: Sexual reproduction occurs when spores from two parents fuse and form a zygospore.

7 0

2 years ago

Read 2 more answers

18. Identify the term that correctly identifies the sentence.

Andreas93 [3]

Answer:

It is a compound sentence.

Explanation:

Compound sentence contains two independent clauses.

5 0

2 years ago

Describe the amount of freshwater on earth and where it is used and stored

Sergeeva-Olga [200]

According to the U.S. Geological Survey, most of that three percent is inaccessible. Over 68 percent of the fresh water on Earth is found in icecaps and glaciers, and just over 30 percent is found in ground water. Only about 0.3 percent of our fresh water is found in the surface water of lakes, rivers, and swamps. The use for the water in the world is for household drinking water. The ocean stores about 97 percent of the Earth's water; the remaining three percent is stored in glaciers and ice, below the ground, in rivers and lakes. Of the world's total water supply of about 332 million cubic miles of water, about 97 percent is stored in the ocean.

Hope this helps!

5 0

2 years ago