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mafiozo [28]
3 years ago
10

How muscle cells structure determines its function in a body

Biology
1 answer:
Ronch [10]3 years ago
7 0

Answer:

hope it helps you....

Explanation:

Muscle cells contain protein filaments of actin and myosin that slide past one another, producing a contraction that changes both the length and the shape of the cell. Muscles function to produce force and motion.

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Warm-Up:
Agata [3.3K]

Answer: Warm-Up:

Write down two places in the school where

you think there might be a lot of bacteria,

and write down two places in the school

where you think there will be very little

bacteria. Explain why you chose these

places.

Explanation:

There is a lot of bacteria in the restroom because it is they restroom of course and there is a lot of people who go in and out through out the day. Some people do not wash their hands after using the bathroom, also from other places. One of the most cleanest areas might be the science lab because they are always cleaning up everything and disinfecting.

8 0
2 years ago
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Describe the key features of the Watson-Crick model for DNA structure.
vagabundo [1.1K]

Answer:

Watson and Crick proposed the double helical model of DNA.

Explanation:

- This model says that DNA exist as double helix. It has two polynucelotide strands running in opposite direction i.e the strands are anti-parallel.

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- The two strands are not coiled upon each other but the double strand is coiled upon itself around a common axis like the spiral stair case. Here base pairs forms the stairs and backbone of two strands form railing. Back bone contains sugar and phosphate.

- The base pairing is specific, adenine always pairs with thymine and guanine always pairs with cytosine. Thus if we see any base pair, it consists of one purine and one pyrimidine.

- The two strands of DNA thus show complementary base pairing.

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- One full helical turn involves ten base pairs and the base pairs are stacked  3.4 A apart.

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5 0
3 years ago
Why does changing the PH of a solution affect the ability of enzymes?
WARRIOR [948]
Enzymes can be denatured by irregular PH. Meaning that they can change shape. Enzymes rely on their shape in order to function so if their shapes change because of the PH then the active sites don't fit anymore and they enzymes wont work. 
3 0
3 years ago
Which is a requirement for natural selection to occur?
KIM [24]

Answer:

Fewer Offspring than the environment can support

Explanation:

It takes time for  a creature to adapt to its  Environment. So that puts off 2.

Your guaranteed to get traits from your parents so that rules out #1

There isn't really an equal probability of survival for an offspring, ruling out #3.

So that leaves us with 4. I'm not biology expert, I'm just letting you know how I did this problem.  Just in case i'm wrong, I would double check with other answers :)

4 0
2 years ago
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Adaptations are important for the survival of both animals and plants. A plant such as the cactus has many adaptations that help
posledela

I think c (it makes getting water easier and and quicker for the cactus

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3 years ago
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