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3 years ago

How did you develop from a single-celled zygote to an organism with trillions of cells?

Biology

1 answer:

kykrilka [37]3 years ago

3 0

Answer: mitosis

Explanation:when an egg is fertilized,it becomes a zygote.the zygote is single-cell and undergoes cleavage.cleavage is the mitotic division of a zygote into smaller cells also called blastomere,which forms a spherical mass.

The type of cleavage is dependent on the different animals and whether yolk is present.

As the zygote continues to grow,organs rudiments forms and organs form afterwards, through mitotic division.

In Mitosis the daughter cell has the same number of chromosomes as the parent cell and it is essential in the increase of the number of cells causing growth in multicellular organisms.

Mitosis also helps to regenerate lost body parts.

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What is the main working cells of the specific immune response

Alina [70]

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3 years ago

Select all that apply. Plant and animal cells both have _____. a cell wall a cell membrane a large central vacuole endoplasmic r

aalyn [17]

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3 years ago

The evolution of tropical grasslands gave rise to three unique types namely..... *

svet-max [94.6K]

Answer:

Biome, a large area of ecological importance where plants and animals or flora and fauna co-exist in the same environment where they have common characteristics.

Biomes are highly sensitive to climatic changes.

They are characterized by non-living or abiotic factors like relief, climate, soil, temperature and vegetation.

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Explanation:

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3 years ago

The frog pictured above is larger than 1.5 inches and smaller than 6 inches. Use this information, along with the dichotomous ke

vazorg [7]

Answer:

According to the characteristics given and what the image shows, the species to which the frog corresponds is Bufo boreas.

Explanation:

Options for this question are:

Bufo marinus .
Litoria caerulea .
Bufo boreas. 
Acris crepitans.

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The appearance of B. boreas is that of a thickened and irregular skin, due to multiple warts found on its surface. Additionally it has a stripe or line in its dorsal region, which extends from the head to the tail.

These characteristics, together with the description given, make it possible to establish that B. boreas is the species that can be observed in the picture (see image).

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3 years ago

Where do many of the cell's metabolic processes take place?

lozanna [386]

D because it goes in and out

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4 years ago