Why do tumor cells need blood vessels to continue to grow

Biology

1 answer:

melomori [17]3 years ago

3 0

Answer:

Like healthy cells, cancer cells cannot live without oxygen and nutrients. So they send out signals, called androgenic factors, that encourage new blood vessels to grow into the tumor. This is called parthenogenesis. Without a blood supply, a tumor can't grow much bigger than a pin head.

Explanation:

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Which of the following are true about secondary consumers in an ecosystem?

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The wall of the left ventricle is thicker than that of the right - True

The left ventricle pumps more blood than the right - False

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Heart has 4 number of chambers. One among these chambers is the left ventricle. Among the four cambers of the heart, the thick one is the left ventricle. It appears below the left atrium. The left ventricle is present in the bottom left part of the heart. When the contraction of heart occurs the blood from the valve called mitral enters the left atrium from the left atrium.

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Primates, Primates, Haplorhini, Hominidae, Hominini, Homo, and sapiens , Hominidae, Hominini, Homo, and sapiens

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Human taxonomy is the systematic classification of humans.

The order is primates include placenta animals including humans, that have good eyesight, flexible hands and feet, well developed brain and they include man, lemurs, apes e.t.c.

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Family Hominidae include group of animals that have well developed forearms and flattened digits nails.

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Homo means man and sapiens means wise.

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