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Bezzdna [24]
3 years ago
14

Which is the best definition for directional selection

Biology
2 answers:
kotegsom [21]3 years ago
6 0
It is a mode of natural selection where an extreme phenotype is favored by the other phenotypes  causing the allele frequency to  shift over time in the direction of that phenotype
postnew [5]3 years ago
3 0

Answer:B- a process by which one of the extreme variations of a trait is favored.

Explanation:

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Mashutka [201]

Answer: doctor may be able to determine the cause by listening to your medical history and doing a physical exam. If necessary, they also can order a blood or urine test to help confirm a diagnosis, or a "culture test" of tissue to identify bacteria or viruses.

Explanation:

5 0
2 years ago
A scientist performs an experiment to see if acids have an effect on the health of a particular type of plant. Three sets of pla
olga55 [171]

The question is not complete but it can be answered in general as the plants cannot survive in acidic conditions.

Answer: High acidity is harmful to this type of plant.

Explanation:

The plants that were kept in the higher acidic conditions are less likely to grow in higher acidic conditions.

The plants that were kept in more basic conditions will also not grow properly as the pH of the soil should be neutral, slightly acidic or slightly basic.

The plants that was kept as a control on the pH of 7 will grow the best as the pH is optimum for the growth of the plants.

The conclusion is high acidity is harmful for the life of the plants.

8 0
3 years ago
3. Explain the difference between the greenhouse effect and global warming.
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Global warming is a long-term rise in the average temperature of the Earth's climate system. And the greenhouse effect is the process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without its atmosphere.

6 0
4 years ago
Oil and gas are now being extracted in large quantities directly from organic-rich
stealth61 [152]

Answer:

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3 0
3 years ago
Cells assemble carbohydrates through dehydration synthesis which means a(n) what molecule is removed when the monomers are bonde
mr_godi [17]
The process for connecting two monomers together is called dehydration synthesis. Dehydration means “removal of water” and synthesis means “to join together”. So in this process, two monomers are covalently bonded by the removal of a water molecule. Each organic monomer has a hydroxyl group on one side and a hydrogen on the other. When two monomers line up side by side, they will have these two functional groups facing one another. The H and the OH will break off of their respective monomers and bond forming a water molecule. This is the dehydration part of the process. Each monomer now has a carbon atom that needs to covalently bond with something, so they bind to each other forming a polymer. That is the synthesis part of the process. 
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3 years ago
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