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stealth61 [152]
2 years ago
13

What type of evolutionary mechanism did this story show?

Biology
1 answer:
Galina-37 [17]2 years ago
6 0

Allele frequencies in a population may change due to four fundamental forces of evolution: Natural Selection, Genetic Drift, Mutations and Gene Flow. Mutations are the ultimate source of new alleles in a gene pool. Two of the most relevant mechanisms of evolutionary change are: Natural Selection and Genetic Drift.

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(Describe the impact of cutting down or burning large areas of forest on the recycling of carbon.
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Answer:

it speeds up the process of the green house effect when trees are burned down is a large area it makes less homes for animals

4 0
2 years ago
The idea that, when life originated on earth, a macromolecule other than dna served the role of information storage and that thi
svet-max [94.6K]

The RNA world hypothesis states that the earlier life-forms had relied only on RNA (Ribonucleic Acid) for the purpose of catalyzing the chemical reactions, and storing the genetic information. This hypothesis was proposed by Leslie Orgel, Carl Woese, and Francis Crick.

This hypothesis states that long before the living forms evolved to use DNA as the genetic storage material, the RNA molecules served the purpose of both storing the genetic information and carrying out catalysis, but because of its instability, DNA evolved.

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4 0
2 years ago
Which structure is most similar to an alluvial fan in formation and composition?
padilas [110]

Answer:

The options are

A. Delta

B. Watershed

C. River

D. Lake

The CORRECT ANSWER IS A

A. Delta

Explanation:

Delta fan is a low lying vegetation that consists majorly of stream –the river accumulates borne sediments at its mouth. It occurs when a river flows to a body of standing water, taking with it soil and minerals as it flows into the body of standing water to form a fan shape or triangle as seen in the attached image.

7 0
2 years ago
When transporting donated platelet units, what is the maximum amount of time that agitation of platelets can be stopped for
SIZIF [17.4K]

24 hours is the maximum amount of time that agitation of platelets can be stopped.

<h3>What are platelets?</h3>

Platelets are pieces of very large cells in the bone marrow called megakaryocytes. They aid in the formation of blood clots that help wounds heal and to slow or stop bleeding. It can be problematic to have platelets that are too many, too few, or aren't functioning properly.

Platelets' main job is to stop and prevent bleeding. The body sends signals to platelets that direct them to the affected location when a blood artery is damaged. Adults typically have between 150,000 and 450,000 platelets per microliter of blood, which is considered normal. Less than 150,000 platelets per microliter indicate a low platelet count. People with thrombocytopenia have low platelet levels. We can bleed heavily and bruise easily if our platelet counts are low.

Learn more about platelets here:

brainly.com/question/13051712

#SPJ1

5 0
1 year ago
Which of the following does not generally have the effect of increasing biodiversity.A. Increasing habitat complexity B. Introdu
natta225 [31]
B. Introducing innovative species
3 0
3 years ago
Read 2 more answers
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