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slega [8]
3 years ago
12

What observation did Darwin make that suggested there had been geological changes in Earth's history?

Biology
1 answer:
Flauer [41]3 years ago
6 0
The correct answer is A. Giant Tortoises

He noticed how they were different on different islands which shows that sometime in history, the islands drifted apart thanks to which the tortoise variants were created based on the island where they were.
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Strobe lighting tends to create hot spots and can make a portrait uncomfortable for the individual. True or false.
solniwko [45]
This is false, strobe lightening does not create hot spots. It actually gives a lot of light and isn't hot at all. 
8 0
3 years ago
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The hyperalgesia that is common in phantom limb pain could potentially be blocked if a new drug was developed that could prevent
gregori [183]

Answer: The answer is B- Diffusion of calcium ions through NMDA receptors.

Explanation:

Phantom limb pain (PLP) is a painful sensation experienced after the loss or amputation of a limb. The limb is no longer there but the individual can still feel real and severe pains in the limb. This occurs soon after surgery.

NMDA is a receptor for Glutamate which is an excitatory neurotransmitter. The activation of NMDA receptors are associated with hyperalgesia which is an abnormally heightened sensitivity to pain.

8 0
3 years ago
What are the factors that contributed to the success of pteridophyte as land plant
Anna35 [415]

Two factors contributed to the success of the pteridophytes: the extreme miniaturization of the gametophytic generation and an important development of the sporophytic generation (development of the tree forms).

Pteridophytes are a group of plants that peaked in the Carboniferous (-300 million years). It is the first great terrestrial plant civilization. These plants would have appeared in the Devonian -400 million years ago, perhaps from certain primitive terrestrial plants which, unlike bryophytes, would have favored the diploid generation on the haploid generation.

Particularly well adapted to terrestrial life, they have created, thanks to the development of tree forms, immense forests whose fossilization is at the origin of coal deposits.

Pteridophytes are at the origin of an evolutionary lineage based on the extreme miniaturization of gametophytic generation and an important development of sporophytic generation, leading to all tracheophytes including current flowering plants. Pteridophytes are well adapted to terrestrial life, however fertilization still requires the presence of water since male gametes are swimmers.

8 0
4 years ago
What is colocalization in protein protein interaction?
tatuchka [14]
That is part of a cow when it has ate something with cocoa.
4 0
4 years ago
Please it's my last question
Aloiza [94]

Answer: true i think

brainliest???

Explanation:

5 0
3 years ago
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