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3 years ago

This is an evolutionary event in which population size is Radically reduced usually because of of a catastrophic event

Biology

1 answer:

madam [21]3 years ago

6 0

Answer:

bottleneck effect

Explanation:

The bottleneck effect is an evolutionary event in which population size is radically reduced, usually due to a catastrophic event.

This effect occurs when sudden changes in the environment, such as natural disasters and habitat fragmentation, reduce the size of a population and hence genetic diversity. An example of this effect is what happened to the prairie grouse, a bird that lived on the grasslands of the state of Illinois, in the United States. The conversion of grasslands to crops and pastures throughout the nineteenth century drastically reduced their populations to less than 50 individuals in 1993. This also reduced genetic diversity and led to increased frequency of deleterious genes. Thus, compared to other populations of the species, egg hatching rates in Illinois capercaillie populations were much lower, below 50%.

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Need all the answers will give 5 stars.

bulgar [2K]

Answer:

1. "a, O, and J"

2. "R and C"

3. I'm not entirely sure about #3, but I believe the answer is "d and R"

4."J, K, I, M, N"

5. "d"

6. "I" explain why: "It is at the bottom, so it is therefore the oldest."

7. "Q" explain why: "It is at the top, so it is therefore the youngest."

8. The folding occured before the faulting. Why? Because the folding is evident in the second half of the fault.

<u><em>DISCLAIMER: any of these answers could be wrong. I did my best but I am still human.</em></u>

7 0

2 years ago

What do all of these science terms mean?

andrew11 [14]

Carbohydrates are sugars.

Example : glucose

They break down to provide short term energy for cells.

Cellular respiration converts glucose into ATP by using oxygen.

Glucose+oxygen

Carbon dioxide +water + atp

7 0

3 years ago

When we study the owl’s food options, what type of ecological relationship are we observing?

Bingel [31]

Answer:

Predation

Explanation:

The owls are preying on their food, which is an example of the ecological relationship of predation in which the predator, the owl, eats the prey, the food options.

6 0

2 years ago

How are a heterozygous and a homozygous individual different?

Sidana [21]

Answer:

Option (a).

Explanation:

Homozygotes individuals has the same genotype whereas the genotype of the heterozygotes are different. The homozygotes may refer the true or pure organism.

The gametes obatined from the homozygotes caaries the same gene. The gametes of the heterozygotes carries the different version of the gene. The dominant trait will express themselves in the heterozygotic condition.

Thus, the correct answer is option (a).

7 0

3 years ago

Kevin is studying predator-prey interactions. One day he notices a spider eating a cricket caught in its web. Later that day, a

s344n2d4d5 [400]

Answer:

The correct answer is option - A. 0.

Explanation:

Producers are the organism that produces on their own. They do not depend on other organisms for their nutrition and energy such as green plants. They transfer energy and nutrition.

In the given scenario there is no producer present all are consumers of different levels. Cricket is a primary consumer, a spider is a secondary consumer and bird is the third consumer in this food chain.

Thus, the correct answer is option- A. 0.

4 0

3 years ago