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maw [93]
3 years ago
9

Did humans evolve from neandethals

Biology
1 answer:
Vera_Pavlovna [14]3 years ago
7 0
Fossil and genetic evidence both suggest that Neanderthals and modern humans evolved between 700,000 and 300,000 years ago from a common ancestor
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Discuss the Conditions necessary to cause water to diffuse out of a cell
sammy [17]

When water molecules diffuse through a cell membrane this process is called the osmosis. Water molecules are extremely small and because of this they can slip freely through the gaps between the phospholipids in the cell membrane. And as a result, water molecules can constantly move back and forth though the cell <span>
membrane. This movement of water has a very important function and that is it enables cells to absorb water. </span>

Now for a movement of water molecules to happen, there should be a concentration gradient in the surrounding. That is, the amount of water in one side must be different on the other side.

<span>For water to diffuse INTO the cell, the amount of water outside the cell membrane should be larger than the amount of water inside the side.</span>

7 0
3 years ago
Which of the following are possible causes of global warming? Check all that apply.
Eddi Din [679]

Answer:

this is my lazy guess but: human activity, differences in emitted energy from earth, and natural fluctuations. BUT DONT TRUST ME LOOK IT UP IM NOT SMART

7 0
3 years ago
Read 2 more answers
2. Create a complementary<br> strand of DNA for the<br> DNA strand show below.<br> A T C G T G A
AysviL [449]

Answer:

T A G C A C T

Explanation:

Adenine (A) and Thymine (T) are base-pairs, alongside Cytosine (C) and Guanine (G). Only A - T or G - C are base-pairs in DNA strands, you will never see Adenine (A) and Cytosine (C) together in a DNA or RNA strand.

6 0
3 years ago
Water flows through a selectively permeable membrane in a process called __________, but water molecules cross the membrane more
coldgirl [10]

Answer:

Osmosis

Aquaporins

Explanation:

This is because osmosis is the movement of solutes from a region of lower concentration to a region of higher concentration through a permeable membrane.

Aquaporins are lipid bilayer and water pores that serve as channels of transmembrane proteins that allow water to cross the membrane very fast, and they play vital roles red blood cells, plant cells and kidney which help to reduce water lose.

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3 years ago
Chromosomes are located in a nucleus in which of the following? I. Viruses II. Prokaryotes III. Eukaryotes
denpristay [2]
III Eukaryotes.


Explanation: This is an animal cell. Plants and viruses do not have chromosomes. Only animals do.
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3 years ago
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