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Elis [28]
3 years ago
7

So-called "dark matter" cannot be directly observed because

Biology
2 answers:
Inga [223]3 years ago
5 0

Answer:

B. it gives off no radiation

Explanation:

Dark matter is so named because it neither absorbs nor emits light and therefore cannot be directly observed.

Ghella [55]3 years ago
5 0

Answer:

B

Explanation:

it gives off no radiation

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shutvik [7]

Answer:

c

Explanation:

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3 years ago
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Write two sentences or clues, one for each word, that will help you remember the difference between actin and myosin. (Example:
vlada-n [284]

Answer:

The correct answer is -

Actin produces thin contractile filaments within muscle cells,

Myosin produces the dense contractile filaments within muscle cells

Explanation:

Actin is a globular protein that makes actin filaments by arranging in the long spiral chain or produces thin contractile filaments within muscle cells. It is found in cell cytoplasm as well as in the nucleus in eukaryotic cells.

Myosin is a motor protein that produces the dense contractile filaments within muscle cells and plays role in generating movement and force from chemical energy.

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3 years ago
Damage to the ________ is most likely to interfere with explicit memories of newly learnedverbal information. Damage to the ____
Arte-miy333 [17]

Answer:

<u>Option:(B)-</u>

  • Damage to the <u>left hippocampus </u> is most likely to interfere with explicit memories of newly learned verbal information. Damage to the<u> right hippocampus  </u> is most likely to interfere with explicit memories of newly learned visual designs

Explanation:

  • <u>Hippocampus:</u>

The dominant side of the hippocampus leads the function of having stored the memories regarding verbal communications or more over the languages that people speak and more over communicate with each other using those medium of instructions. And the right side operates for the function of storing all the information regarding visuals and stuff.

8 0
3 years ago
What is water considered to be abiotic
Musya8 [376]
Abiotic factors are factors that include non-living parts of the environment which could be significant or essential to living organisms. Water is a non-living environment and it helps in giving life to plants and other organisms. Thus deemed abiotic.
4 0
3 years ago
Which type of molecule will require energy to cross the cell membrane? Question 3 options: A) carbon dioxide B) Na+ C) nonpolar
timofeeve [1]

Answer:

B) Na+

Explanation: Na+ molecule is polar, oxygen and carbon dioxide are nonpolar molecules. The cell membrane is a <em>phospholipid bilayer</em> made up of lipid molecules with polar and nonpolar ends. Since it is a bilayer, two phospholipid layers are arranged, one on the other in such a way that one faces the back of the other. The non polar ends are away from outside and inside of the cell, while  the polar ends faces towards all the molecules inside and outside the cell.

Since polar-polar molecules repel each other, Na+ can't pass through the cell membrane easily. So it uses the proteins attached the cell membrane inside and outside to transport such molecules by using energy in terms of ATP.

3 0
4 years ago
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