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arlik [135]
3 years ago
10

What is a force that opposes motion through direct contact?

Biology
2 answers:
sertanlavr [38]3 years ago
8 0
The correct answer is A.
Friction is when two objects move along side each other
ki77a [65]3 years ago
5 0

Answer: <u><em> a) Friction</em></u>

Explanation: <em>Friction is a force that opposes motion. When two objects are in contact, friction is acts in a direction opposite to the motion of the object.</em>

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The endocrine system carries out its job by releasing target cells into the bloodstream.
tekilochka [14]
False! The endocrine system carries out its job by releasing hormones which then travel through the blood stream to target cells where they interact and create a hormonal change in those cells. the main organs of the endocrine system are the pituitary gland, the hypothalamus, and the thyroid. 
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3 years ago
Which examples show repair or replacement of damaged cells? a scrape being healed scars forming where a cut once belonged skin f
marta [7]

Answer:

a scrape being healed

Explanation:

cell reproduction is the process by which cells divide to form new  cells. each time a cell  divides it makes a copy of all its chromosomes, which are tightly coiled strands of DNA, the genetic material that holds the instructions for all life, and sends an identical copy to the new cell that is created.

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3 years ago
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In which of the following structural features is light harvesting during photosynthesis?
Ymorist [56]

In Photo-systems I and II structural features is light harvesting during photosynthesis.

Answer: Option C

<u>Explanation:</u>

The photosynthesis depends on light energy. Small pigmented molecules are present on the surface of the leaves which aids in the absorption of solar energy. Then the energy absorbed from light is converted to chemical energy which is utilized as the fuel.

This light dependent reaction is propagated by grouping of pigments and proteins called the photo-system. There are two photo-systems, Photo-system I and Photo-system II. Here the light is absorbed two times both in PS I &II. This process is called as photo-phosphorylation which uses light energy and converts ATP to ADP.

6 0
4 years ago
How are Amino acids linked to become proteins?​
wlad13 [49]

Answer:

Within a protein, multiple amino acids are linked together by peptide bonds, thereby forming a long chain.

Explanation:

Peptide bonds are formed by a biochemical reaction that extracts a water molecule as it joins the amino group of one amino acid to the carboxyl group of a neighboring amino acid.

5 0
4 years ago
What occurs when two pieces of land change their vertical relationship to each other?
Natali5045456 [20]

The answer to this is A.

The reason its A is because a Dip-Slip is inclined fractures where the blocks have mostly shifted vertically. If the rock mass above an inclined fault moves down, the fault is termed normal, whereas if the rock above the fault moves up, the fault is termed reverse.

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3 years ago
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