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marin [14]
2 years ago
11

Why do tumor cells need blood vessels to continue to grow

Biology
1 answer:
melomori [17]2 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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What type of cytokine stimulates blood cell production?.
Rashid [163]

IL-2 is one of many cytokines that govern the immune response. It acts as a mitogen for T cells, potentially enhancing their proliferation and activity, improving antigen generation, and raising the synthesis and release of other cytokines.

3 0
2 years ago
Which material in the lab represents each of these parts of the Earth system? (4
agasfer [191]

The material in the lab represents each of these parts of the Earth system is water as through this experiment we will find about the effect of water on earth.

<h3>What is Quartz (silicon dioxide)?</h3>

The considerable portions of silicon dioxide determined withinside the earth's crust are enough to fulfill all commercial needs. Among the minerals and earths that incorporate silicon dioxide in an uncombined shape are quartz, flint, diatomite, stishovite, agate, amethyst, chalcedony, cristobalite, and tridymite.

  1. The water's ability to dissolve different kinds of rock is weathering.
  2. NaCl are minerals are dissolved by plainwater.
  3. Limestone (calcium carbonate) minerals are dissolved by rainwater.
  4. Minerals do not undergo solution is Halite (sodium chloride):
  5. No only sedimentary rocks are chemically weathered by water.

Read more about the plain water:

brainly.com/question/20596858

#SPJ1

8 0
2 years ago
What is the last structure of the air passageway in your lungs
Rasek [7]

Answer:

Bronchioles

Explanation:

You inhale through your nose and the air is filtered. It goes down the pharynx. It goes through the larynx. A "door" called the epiglottis opens during breathing. Then it enters the trachea. (windpipe) It goes through the bronchus. The tertiary bronchi branch into fine tubules called bronchioles, the last passageways for air. Air ends its pathway in the ________. (I bet you can guess because you're so smart!) They're surrounded by capillaries that connect the pulmonary arteries and veins. This enables the transfer of oxygen and carbon dioxide.

I hope this helped!!! Good luck on the test/quiz/project/homework/etc. you're working on! If you want I can give you a l!nk to the article I used. If not, it's fine too. Have a great day!

7 0
2 years ago
What statement about the mechanism of hunger and satiety is true?
disa [49]

Answer:

The correct answer is: The ventromedial hypothalamus plays a role in satiety.​

Explanation:

The hypothalamus is a part of the brain that controls many important bodily functions and connects both the nervous system with the endocrine system. The hypothalamus consists of several nuclei that have diverse functions and are located in 3 different regions.

The nucleus that plays a role in satiety is the ventromedial nucleus, terminating hunger and giving a sensation of fullness. It also plays a significant role in thermoregulation, among other things.

Neuropeptide Y, on the other hand, is a peptide that is released to make us feel hungry and encourage us to intake food (primarily carbohydrates).

Cholecystokinin is a hormone released by the small intestines after we had a meal, and its function is to improve digestion and make us feel full.

Fat cells DO release leptin, but the function of this hormone is to produce satiety, by stimulating anorexigenic (meaning they take hunger away) hormones and inhibiting orexigenic ones, like Neuropeptide Y.

7 0
3 years ago
Please Help Mark and Vikki live in two different areas of North America. The temperature in Mark’s town today is 30°F. The tempe
uysha [10]

Answer:

I assume there could be a change in water vapour in the weather as the coldness and the clouds in the city of Mark will transform into ice and fall like snow. And it is really warm in the town of Vikki, and the vapour of water may fall as rain.

Explanation:

I assume there could be a change in water vapour in the weather as the coldness and the clouds in the city of Mark will transform into ice and fall like snow. And it is really warm in the town of Vikki, and the vapour of water may fall as rain.

See above

Please mark brainliest

<em><u>Hope this helps.</u></em>

6 0
3 years ago
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