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Alja [10]
3 years ago
7

How do natural disasters affect the process of natural selection? 15 points!

Biology
1 answer:
AURORKA [14]3 years ago
7 0
It decreases the population of certain animals
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What important function could be diminished if the cilia on ependymal cells were absent?
Crank

Answer:

Ependymal cell present in the central nervous system has an important role in production and control of cerebrospinal fluid (CSF). This ciliated cell acts as sensory for coordination to cellular signaling in the production and control of CSF.

Explanation:

6 0
3 years ago
Explain why the intracellular and extracellular surfaces of the phospholipid bilayer are polar.
yulyashka [42]

Answer:

A single phospholipid molecule has a phosphate group on one end, called the “head,” and two side-by-side chains of fatty acids that make up the lipid “tails. ” The phosphate group is negatively charged, making the head polar and hydrophilic, or “water loving.” The phosphate heads are thus attracted to the water.

Explanation:

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3 0
2 years ago
How many strands of mRNA are transcribed from the two “unzipped” strands of DNA?
sp2606 [1]

Answer:Since DNA is double-stranded, two different RNA molecules could in principle be transcribed from any gene, using each of the two DNA strands as a template.

Explanation:During transcription, the DNA of a gene serves as a template for complementary base-pairing, and an enzyme called RNA polymerase II catalyzes the formation of a pre-mRNA molecule, which is then processed to form mature mRNA

4 0
3 years ago
Water droplets sticking to spider webs is caused by the same property that caused a water droplet to stick to your finger in you
Alona [7]

Answer:

adhesion

Explanation:

Its just like Water drops on a pine needle or on anything else, Cohesion is when water is attracted to water. Therefor its Adhesion, because that's when water is attracted to other things or substances.

7 0
3 years ago
Read 2 more answers
Why might you want to use a single fixed pulley?
gizmo_the_mogwai [7]

Answer:A

Explanation:

A fixed pulley raises the load in a unidirectional manner... This therefore reduces the force required to raise that same load without the pulley.. It actually reduces the force required to raise objects

4 0
3 years ago
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