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HACTEHA [7]
3 years ago
5

DNA replication allows the basic units called

Biology
1 answer:
olasank [31]3 years ago
5 0
DNA replication allows the basic units of heredity found on segments of DNA called genes to be passed from parent to offspring.
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Which of the reactions of photosynthesis require pigments absorbing solar energy?
ss7ja [257]

Answer:

During photosynthesis, a green pigment called chlorophyll is required to absorb solar energy. The reaction in photosynthesis that requires pigments to absorb solar energy is called LIGHT REACTION.

Explanation:

Light reaction is considered to be the first stage or phase during photosynthesis and the key elements that is needed for the reaction to take place is- sunlight and chlorophyll.  Chlorophyll is a pigment that makes the leaves of the plant appear green. There is also another important function of chlorophyll that is to trap solar energy during the process of photosynthesis to convert the trapped solar energy into chemical energy- ATP molecules. These ATP molecules then form glucose- food for the plant.

7 0
3 years ago
A cyclist starts a race. As she pedals, she begins to breath faster. Why? plz answer fast!!!
Advocard [28]

Answer: Her body begins doing cellular respiration

Explanation: She needs her electron transport chain to function to produce 34+ ATP. The E.T.C. Needs oxygen to work, so she needs to increase her oxygen input. She breathes more to increase the flow of oxygen. Her heart also beats faster because she needs more oxygen to spread to her body.

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3 years ago
Over 500 million years ago what was British Columbia ??
ELEN [110]

Answer:

500-million-year-old fossil found in BC is ancient ancestor of spiders and scorpions. Palaeontologists in British Columbia have found a fossil of the oldest known ancestor of scorpions and spiders.

8 0
2 years ago
Why are scientists concerned that currently unknown medicinal plants may never be discovered?
Eduardwww [97]
The reasoning behind this is because these unidentified plants could be used to cure diseases, used for food, and many scientists may even use these plants to create cosmetics. I really hope this helps and I just thought this off the top of my head so its may not be 100% accurate but its the basics of it.
5 0
3 years ago
Read 2 more answers
A muscle cell contracts or expands when
yanalaym [24]

Answer:

Walking

Explanation:

A muscle cell usually contracts or expands simultaneously when one is working or doing some activities like running, exercises, house chores e.t.c

Muscles are flexible fibers that are very essential appendages for locomotion in human beings.

For muscle cells to contract, they are pulled together thereby causing tension in the muscle. When they are relaxed, they move away from one another.

3 0
3 years ago
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