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djyliett [7]
3 years ago
7

Which are example of active transportation across the cell membrane?

Biology
1 answer:
Kaylis [27]3 years ago
8 0

Answer:

Explanation:

-Sodium-potassium pump (exchange of sodium and potassium ions across cell walls)

-Amino acids moving along the human intestinal tract.

-Calcium ions moving from cardiac muscle cells.

-Glucose moving in or out of a cell.

-A macrophage ingesting a bacterial cell.

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The hantavirus outbreaks in the eastern hemisphere (Asia) are identified with pulmonary failure and have been referred to as "hantavirus pulmonary syndrome" (HPS).

The given statement is b) false.

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2 years ago
A food chain what, put it in order..
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Bottom of chain going up....
Deer Mouse, western toad, woodpecker, gray squirrel, Gopher snake, Mule deer, Cooper’s hawk, Cougar
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3 years ago
Several fish species became extinct millions of years ago. The graphs provided below show the distribution of fossils of these f
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1. Explain why the distribution of fossils in Figure 1 supports the hypothesis that the extinction of these species was the result of a sudden environmental change.
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2. Describe an environmental change that could have produced this type of fossil distribution.
Good examples of sudden environmental changes are volcanoes. When a rash occurs, the whole environment suddenly changes for different reasons such as ash or lava, and all living things can die immediately or in a few years by the change in the ecosystem.

3. Explain why the distribution of fossils in Figure 2 supports the hypothesis that the extinction of these species was the result of a gradual environmental change.
This is because the fossils accumulate at different ages of the rock layer, that means, the species dying over time. The gradual descent of the fossils is observed.

4. Describe an environmental change that could produce this type of fossil distribution.
For example, if a climate change occurs - the temperature increases or decreases - it can cause the trees or plants to die and all the animals in the ecosystem also die when they have no food. But this process is sequential, so the change can take years, centuries or even millions of years.

I hope this can help you.
4 0
3 years ago
Gene regulation in eukaryotes is regulated by
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<span>repressors as well as by transcriptional activators.</span>
4 0
4 years ago
The derived characteristic of protostome development is found in which of the following phyla?
slava [35]

B. Roundworms<span>. 

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<span>Roundworms are organisms that are diverse and almost in clustered to many other ecosystems and environment. 

These Protostome  includes mollusks, annelids, and arthropods

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3 0
3 years ago
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