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stepladder [879]
3 years ago
6

Differences in density of ocean water is important because it

Biology
1 answer:
Novosadov [1.4K]3 years ago
7 0
Drives deep ocean currents
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How does a cell separate itself from its environment and still allow materials to leave and enter the cell in order to maintain
Damm [24]

ah! All thanks to the cell membrane!

The cell membrane contains phospholipids that are amphiphilic (polar - water attracting and non-polar - water repelling) in nature. That's why the cell membrane allows non-polar materials to pass through but not polar materials. (if you're learning junior science you really don't need to know this!) The polar materials require proteins found on the cell membrane called protein channels or carrier proteins to pass through. (their names are pretty self-explanatory!)      

All the best!

8 0
3 years ago
The function of the goblet cells is to ________.
jolli1 [7]
The function of the goblet cells is to produce mucus that protects parts of the digestive organs from the effects of powerful enzymes needed for food digestion. 
7 0
3 years ago
Human proteins can be produced by cells in the milk-producing mammary glands of transgenic mammals if the regulatory sequence of
natta225 [31]

Answer:

It is important to use the regulatory sequence of a milk gene when constructing a recombinant gene used to produce a human protein secreted in milk because<em> it is capable of increasing or decreasing the expression of specific genes within an organism.</em>

Explanation:

<em>Regulatory Sequence</em> is<em> a segment of a nucleic acid molecule</em> which is capable of increasing or decreasing the expression of specific genes within an organism. Regulation of gene expression is an essential feature of all living organisms and viruses.

6 0
3 years ago
What are the levels of organization ?
kotegsom [21]
<span>They are organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.</span>
4 0
3 years ago
Natural resources in the environment must be allocated responsibly. Why is the location of resources a concern?
Valentin [98]
I am not sure, but to me it sounds that this is important because human populations are sometimes concentrated in areas that are lacking resources. Although, all of the given options may be correct.
4 0
3 years ago
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