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valentinak56 [21]
3 years ago
5

Which of the following hypotheses is BEST supported by observing cancer cells in a culture

Biology
2 answers:
liq [111]3 years ago
4 0
The cancer cells produce molecules that inhibit the growth factors reguired for cell division
Citrus2011 [14]3 years ago
3 0

Answer: A. The cancer cells do not exhibit density dependent inhibition

Explanation:

Density-dependent inhibition is defined as "the stopping of the division of cells in case of a crowded environment." As you may know, cancer cells are rapidly reproducing cells in a specific area and they reproduce regardless of whether there's enough room or not. This is how tumors are formed.

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Why is the percentage of food eaten a good thing to use
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Good nutrition is important throughout your life! It can help you feel in your best condition and stay strong. It can help reduce the risk of some of the common illnesses among older adults.

3 0
2 years ago
If you wanted a horse to foal in January when would you breed
Nana76 [90]
Since all thoroughbreds have the same birthday — January 1 — the best bet for a racing horse is to raise so that the foal drops right after that date. This means the yearling at his first birthday is a five-year-old and from then on he is ahead of the game with a five year of maturation before each.
6 0
3 years ago
1. Can a single organism change its traits to become better suited for its environment during its lifetime? (highlight one) YES
Burka [1]

Answer:

check explanation

Explanation:

If you are talking about adapting to an environment then yes, like how we train to strengthen our muscles to get stronger. If you mean by evolving then no, a single organism can not evolve their traits in a lifetime, like a human can't naturally grow gills to breathe underwater

6 0
2 years ago
Read 2 more answers
Describe and explain how the surface of the early Earth and its atmosphere have changed
Yuliya22 [10]

Earth had essentially no atmosphere when it originated 4.6 billion years ago from a heated mixture of gases and minerals. The ground had melted on it.

An atmosphere developed when Earth cooled, primarily from gases released by volcanoes. It contained methane, hydrogen sulfide, and ten to 200 times as much carbon dioxide as the atmosphere we are surrounded by today. The Earth's surface began to cool and solidify after roughly 500 million years, allowing water to accumulate there. Although life on Earth continued to develop and diversify, such periods of expansion and development were halted by mass extinctions, in which many of the planet's major life forms were either entirely or partially wiped out and many others were freshly established. Such catastrophic extinction episodes are attributed to asteroids impacts, climate change, volcanic eruptions, etc. Dinosaurs were also wiped out in one such event. The largest problem the Earth is currently experiencing is climate change brought on by human activity. Although human activities may exterminate some species from the world, the planet will undoubtedly recover and return to its natural balance as it has for millions of years. However, the sun will ultimately wipe out Earth, as predicted by scientists. The Sun will lose its structural integrity and enlarge in volume as it ages and eventually runs out of the fuel that keeps it going—hydrogen—which will cause it to burn everything in its path, including life on Earth. In the end, the Sun would perish, leaving the Solar System permanently in the dark.

Learn more about Early Earth brainly.com/question/14478431

#SPJ9

8 0
2 years ago
What is the defining characteristic of a
ziro4ka [17]

Answer:

B

Explanation:

Prokaryotic cells lack a nucleus

5 0
1 year ago
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