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love history [14]
3 years ago
5

Which best describes the cell theory?

Biology
1 answer:
andrew11 [14]3 years ago
4 0
The cell theory basically states that all living things are made up of cells, that cells are the smallest unit of life, and cells only come from other cells. 
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If a nonnative species is introduced into an ecosystem . how might the biodiversity or health of the ecosystem change? why
Vinil7 [7]
It would be negatively impacted because a foreign species would start to take over a native species’ role in the ecosystem and may also directly (if it’s a predator) or indirectly lead to the decline of other species. So as some species may start to decline and eventually become extinct in that particular ecosystem, the biodiversity level would lessen cuz there’s less types of plants and animals. Less plants and animals could lead to the ecosystem to eventually collapse and it would be literally a mass extinction.
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3 years ago
Where do scientist believe that homo sapiens sapiens first appeared between 150000 and 200000 years ago?
8_murik_8 [283]
Homo sapiens means wise human being, it one of several species grouped into the genus Homo, but it is the only one that is not extinct. It is the specie where all human beings belong. They replaced Neanderthals during 30,000 BC. Scientists believe that Homo sapiens appeared in Africa between 150,000 and 200,000 years ago.
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The vertebrate pax-6 gene product (the pax-6 protein) triggers a complex program of gene expression resulting in formation of th
Dahasolnce [82]
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6 0
3 years ago
Which of the following will most likely happen to an enzyme if it is placed in an environment that is too acidic or too basic?
adoni [48]
Answer - A. Will slowdown or stop working

Reason - every enzymes has a specific ph level but if it's out it's range then it won't be able to adapt and will eventually stop working. Like I said enzymes have specific needs in order to be able to function properly.
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3 years ago
Radiometric dating allows us to determine...
Alekssandra [29.7K]

Answer:

a and c are the correct answer so option E. thank you .

3 0
3 years ago
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