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Triss [41]
3 years ago
14

Why is a sea otter a “keystone”??

Biology
2 answers:
Oksi-84 [34.3K]3 years ago
8 0

Explanation:

Sea otters are an iconic species, representing the beauty and diversity of marine life found along California’s coastline. They’re also considered a keystone species because of their critical importance to the health and stability of the nearshore marine ecosystem. They eat sea urchins and other invertebrates that graze on giant kelp.

Margaret [11]3 years ago
7 0
This is because eliminating them would cause a trophies cascade. The sea otter’s prey would increase, and the prey of that prey would decrease. Thus, otters are a “keystone” species.
Please give me Brainliest
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elixir [45]

Answer:

Cancer cells such as Hela cells escape to normal cell cycle by mutations that lead to the misexpression and/or overexpression of regulatory molecules (e.g., cyclins and cyclin-dependent kinases) and faulty checkpoint control of the cell cycle  

Explanation:

The term cell cycle refers to the mechanism of DNA replication and cell division, which involves a series of sequential steps. The control of the cell cycle depends on 1-cyclins and cyclin-dependent kinases (CDKs) that regulate the cell cycle by a cascade of protein phosphorylations and 2- a group of checkpoint controls that monitor the completion of critical cellular events. HeLa is an immortalized cell line derived from cervical cancer cells. These cells (HeLa) contain 76 to 80 total chromosomes (instead of the 46 chromosomes that contain normal-diploid body cells), some of which are heavily mutated. These mutations can affect CDKs that control the cell cycle as well as checkpoint-control mechanisms (for example, those resulting from DNA damage), thereby cells do not enter programmed cell death (apoptosis) and proliferate uncontrollably.

4 0
3 years ago
When we refer to the APHOTIC ZONE of the ocean, what do we mean? A. This is the very shallow part of the ocean. B. This is the p
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Answer:

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4 0
2 years ago
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3 years ago
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Nadusha1986 [10]


Water! (abiotic)

If water runs out then everything dies! :)

Thanks for the opportunity to answer your question and I hope this help! :)

8 0
2 years ago
The movement of water from areas of high concentration to areas of low concentration is called
Zigmanuir [339]

Answer:

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Explanation:

The movement of water from areas of high concentration to areas of low concentration is called <u>osmosis</u>

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2 years ago
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