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natulia [17]
3 years ago
10

The temperature in the upper atmosphere is -2°C, and the temperature on Earth’s surface is 5°C. Which type of weather is most li

kely in these conditions?
Biology
1 answer:
sergiy2304 [10]3 years ago
5 0

Answer:

Windy

Explanation:

The cold air drops down while the hot air rises, causing wind to rush about.

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How do I find speed and acceleration step by step?
Luda [366]

Answer:

Average speed is distance divided by time. Velocity is speed in a given direction. Acceleration is change in velocity divided by time.

Explanation:

7 0
3 years ago
Read 2 more answers
A population contains short plants and tall plants . The short plants are not able to compete with tall plants for sunlight . Th
Tom [10]
<span>Stabilization Selection

In Stabilization Selection there is a decrease in the amount of variation. In the case of Stabilization Selection, selective pressures must select against two extremes of a particular trait. Two opposing selection pressures will combine to maintain a median height. Rather than resulting in extremely tall plants or extremely short plants, the majority of the plants in this population will be of medium height.</span>
4 0
3 years ago
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Consider two different traits in mice affecting tail length and fur color. A two-factor cross was made involving true-breeding m
Stells [14]

Answer:

See the answer below

Explanation:

Null hypothesis: The two genes are independently assorting and therefore, are not linked to each other.

Let A represents the allele for tail length and B for fur color. Long-tail A is dominant over short tail a while brown fur B is dominant over white fur b.

For the first cross involving true-breeding mice:

    AABB   x   aabb

F1         AaBb (long tails and brown fur)

For the second cross:

      AaBb   x   aabb

4 AaBb - Long-tail, brown fur

4 Aabb - Long tail, white fur

4 aaBb - short tail, brown fur

4 aabb - short tail, white fur

Since the phenotypic ratio from the cross is 1:1:1:1, if the null hypothesis was to be true, it means that the expected phenotype ratio should be 1:1:1:1.

In order to test this hypothesis, we use Chi-square:

phenotype                           O            E                 X^2  

Long-tail, brown fur           118          97.5        \frac{(118-97.5)^2}{97.5} = 4.31

Long tail, white fur              77           97.5             4.31

short tail, brown fur             81           97.5              2.79

short tail, white fur              114           97.5              2.79

Total                                                                          14.2

Degree of freedom = 4 - 1 = 3

Critical Chi-square value = 7.815

The calculated Chi-square value is more than the critical value, hence, the null hypothesis is rejected.

8 0
3 years ago
What determines the sex of an organism, the male sperm cell or the female egg cell? ______
Liono4ka [1.6K]

Answer:

sperm cell contains the x or y

Explanation:

please give brainliest

4 0
3 years ago
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Describe what happens during translation
masha68 [24]

What happens is that the RNA<span> is synthesized from the template and RNA polymerase moves along the DNA, elongating the RNA transcript molecule; an enzyme forms the hydrogen bonds between the bases of the DNA strand and the complementary bases of the RNA molecule found in the nucleus.</span>

<span>Hope this helped !!</span>

5 0
3 years ago
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