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andrezito [222]
3 years ago
11

Which of these is an environmental change that occurs rapidly?

Biology
1 answer:
Alex Ar [27]3 years ago
5 0

Answer:

Its (D) Volcanic Eruption

Explanation:

You might be interested in
What else can be the cause of variation?
melomori [17]

Answer:

the cause of variation are

  1. mutation
  2. random fertilization
  3. recombination between homologous chromosome

hope it helps.

4 0
3 years ago
Which factors affect natural selection?
xz_007 [3.2K]

Answer:

The correct answer is B) Variation, overpopulation, and adaptation

Explanation:

Edge 2021

8 0
3 years ago
Is this True or false:<br><br> There are chromosomes that do not contain genes.
Marta_Voda [28]

Answer:

true

Explanation:

Each chromosome represents a single gene. Each chromosome usually contains multiple genes. All members of each species have the same number of chromosomes.

7 0
2 years ago
Why do we find probability of deviation in biology ? And when can the null hypothesis be accepted
jasenka [17]

Answer: probability is used to predict the chance that an event is likely to occur at a particular chosen level of significance.

Null hypothesis is accepted in biology when the p value is less than 1%, statistically, when the value of p<0.01

Explanation:

Determing the significance level is decided by the researcher, often times, scientists commonly use the 0.05, 0.01, or 0.001 probability levels as cut-off values. For instance, in the example experiment, you used the 1% probability. Thus, P ≥ 0.01 can be interpreted to mean that chance likely caused the deviation between the observed and the expected values (i.e. there is a greater than 1% probability that chance explains the data).

If instead we had observed that P ≤ 0.01, this would mean that there is less than a 1% probability that our data can be explained by chance. There is a significant difference between our expected and observed results, so the deviation must be caused by something other than chance.

8 0
4 years ago
Cross a person who does not have freckles and is heterozygous for dimples with a person who has
Alja [10]

Answer:

1. 1/2

2. 1/2

3. 1/4

Explanation:

Let the allele for freckles be A or a while that of dimples be B or b.

A person without freckles but heterozygous for dimples = aaBb

A person who has freckles (whose mother has no freckles) but no dimples = Aabb

      aaBb    x    Aabb

Offspring

4 AaBb - freckled and dimpled

4 Aabb - freckled and non dimpled

4 aaBb - non freckled and dimpled

4 aabb - non freckled and non dimpled

1. <em>Probability that the parents will have a dimpled child</em> = 8/16 or 1/2

2. <em>Probability that they will have a child with freckles</em> = 8/16 or 1/2

3. <em>Probability that they will have a child with freckles and dimples</em> = 4/16 or 1/4

<u>See the attached image for the Punnet's square analysis of the cross</u>

4 0
3 years ago
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