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SVETLANKA909090 [29]
3 years ago
13

The hypothesis that all species are descended from common ancestors was proposed by

Biology
1 answer:
MrRissso [65]3 years ago
6 0
The answer is Charles Darwin. He was the first to theorize evolution from a common ancestor.
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Explain and give an example of inversion in DNA sequencing.​
eduard

Answer:

If two breaks occur in one chromosome, sometimes the region between the breaks rotates 180 degrees before rejoining with the two end fragments. Such an event creates a chromosomal mutation called an inversion.

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3 years ago
You coat a Petri dish with fibronectin and proteoglycans and culture cells on the dish. The cells adhere to the dish. You repeat
Lana71 [14]

Answer:

The results of the experiment is a process called competitive inhibition.

Explanation:

Competitive inhibition is a process where an inhibitor (RGD tripeptides in this case) that resembles a normal substrate bind the active site of an enzyme and prevents the a real substrate from binding and a product from being formed (blocking enzymes active site).

When RDG tripeptides are added the cells would not adhere to the dish (competitive inhibition).

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3 years ago
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1. C.

2. D

3. D.

4. D.

Explanation:

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3. Sedimentary rock contains fossils because it was built up layer upon layer, often trapping and preserving animals, plants, footprints, and more within the layers of sediment.

4. The Uplift of the Colorado Plateau. The Kaibab Limestone, the uppermost layer of rock at Grand Canyon, was formed at the bottom of the ocean. ... The action of plate tectonics lifted the rocks high and flat, creating a plateau through which the Colorado River could cut down.

<em>Hope this helps! :D</em>

6 0
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What are the hair-like extensions used like oars to propel the protists to nutrients?
Blizzard [7]

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Cilia

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Cilia are the hair-like extensions used like oars to propel protists.  They move in a wave-like pattern to move the protist.  

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B.

distance from pitcher's mound to home plate = 60 feet; time for baseball to go from pitcher's mound to home plate = 0.4 seconds

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3 years ago
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