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Kamila [148]
2 years ago
8

How does natural selection operate to cause change in a population?

Biology
1 answer:
Nataly_w [17]2 years ago
7 0
The hole reason for natural selection is to keep the Eco system in balance take something away it will fall apart or if you put to much of something the same thing will happen. 
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What organelle controls a cell's packaging, storage and shipping functions?
VladimirAG [237]

Answer:

c

Explanation:

4 0
3 years ago
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In which well does a chemical change occur? A) A B) B C) C D) D
Stels [109]

I can't see the well but chemical changes happen when a substance combines with another to form a new substance. These processes are called chemical reactions and are not reversible except if you do more chemical reactions... So the well that is changing it's state of matter should be the one undergoing a chemical change. For, example boiling or freezing

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3 years ago
(ii) Aziman accidentally stepped on a rusty nail during a mountain climbing expedition.
jasenka [17]
The injection would be to keep him from getting infections
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2 years ago
The systolic arterial blood pressure observed for 20 dogs is normally distributed with a mean of 152 mm of mercury (hg) and a st
Damm [24]

Given: The systolic arterial blood pressure observed for 20 dogs is normally distributed with a mean of 152 mm of mercury (Hg) and a standard deviation of 18 mm of Hg.  

To find: P(100 < 152)

Method: Calculation of Z-Score followed by the probability or area of the bell curve at X = 100.

Solution:

Mean u = 152, std s = 18

Z score = \frac{X-u}{s} = \frac{100-152}{18} = -2.89

The value of P(100<152) is calculated by looking at the value of Z in the Z score for the standard normal distribution given in the image.

P(Z=-2.89) = 0.0019

The P(Z = -2.89) corresponds to the area in the left tail of the bell curve.

Thus the probability of 100 mm Hg blood pressure is 0.0019.

7 0
3 years ago
Earth Science <br><br> List and describe the three main parts of the earth
fenix001 [56]

Answer:

The three main parts of the earth are the crust, the mantle, and the core.

Explanation:

Hope this helps!

7 0
2 years ago
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