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allochka39001 [22]
3 years ago
6

What is a change in a gene or DNA sequence?

Biology
2 answers:
svp [43]3 years ago
4 0

Answer:

D

Explanation:

Inessa [10]3 years ago
3 0

Answer:

the answer is D. Mutation  hope it helps

Explanation:

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How does blood pressure change during heavy exercise?
murzikaleks [220]

Answer:

The blood pressure is increased to pump more blood to distribute more oxygen to the muscles

Explanation:

When we do activities that demand heavy exercise like running, our body needs more oxygen to carry out property the exercise.  Oxygen is transported to muscles by the circulatory system (principally blood), our heart starts to pump faster the blood ( increase the blood pressure)  to distribute the oxygen between muscles, consequently, we start to breathe faster to increase the oxygen intake.  

6 0
3 years ago
The diagram shows horizontal rock layers.
Inga [223]
Layer D is the youngest layer
7 0
3 years ago
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What was the average of diameters (cm) for the Willapa Bay urchins sampled before the hunt? (Type just the number rounded to the
Otrada [13]

Answer:

See Explanation

Explanation:

The question is incomplete as the diameters of the Willapa Bay urchins were not given.

However, I'll give a general way to solve this problem.

Average is calculated using:

Average = \frac{\sum x}{n}

i.e. Sum of all diameters divided by the number of bay urchins.

The diameter of urchins is usually between 6cm to 12cm; So, I will assume the following diameters for 10 urchins.

10cm, 8cm, 10cm, 7cm, 9cm, 10cm, 6cm, 10cm,8cm, 8cm

Using the above data, the average is:

Average= \frac{10+8+10+7+9+10+6+10+8+8}{10}

Average= \frac{86}{10}

Average= 8.6

7 0
3 years ago
The table shows which mRNA codons code for various amino acids.
Gnoma [55]

Answer:

there is no amino acid sequence because the mRNA doesnt have the start codon (AUG).

7 0
3 years ago
4. Which material dissolves<br> most substances in chemical<br> weathering?
Assoli18 [71]

Answer:

Water is important in chemical weathering because most substances dissolve in water.

The process of dissolving breaks up the minerals in the rock into small pieces. The small pieces mix with water to form.  

Acids are also agents of chemical weathering and cause more chemical weathering than pure water does.

7 0
3 years ago
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