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8090 [49]
3 years ago
12

During which epoch did scientists infer that earliest grasses first appeared on earth?

Biology
2 answers:
lbvjy [14]3 years ago
5 0

Answer:

The Epoch you are looking for would be Ogliocene, its where they think the first grasses appeared..

lozanna [386]3 years ago
3 0
The Epoch you are looking for would be Ogliocene, its where they think the first grasses appeared.. The Ogliocene was in the middle of the Tertiary period and lasted 11 million years.

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Two insect groups vary genetically by two genes. When put together,they were able to reproduce and produce offspring that could
nikitadnepr [17]
<h3>Your answer is D.</h3>

The insects are the same species.

<h3>Explanation:</h3>

A species is a group of similar organisms able to reproduce (to exchange genes and interbreed) only within the group. That means that organisms from different species could not exchange genes. Since mentioned insect groups are able to reproduce and produce offspring that could also breed, these groups belong to the same species. If they could not reproduce and produce offspring that could also breed, these groups would belong to the different species.

I hope I helped, and I always appreciate Brainliest!!! :)

8 0
3 years ago
Which of the following does NOT describe conditions that occur during an action potential?
salantis [7]

Answer:

D) Na+ is used to repolarize the membrane.

Explanation:

Option D is wrong choice because it is K+ which is used to repolarize the membrane not Na+.

As soon as membrane gets depolarized because of influx of Na+ due to opening of voltage gated Na+ channels simultaneous opening of voltage gated K+ channels and closing of Na+ voltage gated channels takes place. As a result of which K+ moves out of the cell leading to drawing of electrochemical gradient out of the cell.

In order to achieve resting membrane potential, more Na+ must be out of the cell and more K+ must be inside the cell. There are many leaky channels on neurons from which Na+ has tendency to leak into the cell while K+ has the tendency to leak outside of the cell. So Na+/K+ pump which is located on the membrane of neuron keeps pushing Na+ outside of the cell and K+ inside the cell so as to maintain resting membrane potential which is -70 mV.

7 0
4 years ago
Which term is used for the group of proteins that are catalysts for metabolic reactions?
Semenov [28]
The answer is D) enzymes.
“Enzymes are protein catalysts. A specific region of an enzyme where a substrate binds and catalysis takes place.”
5 0
4 years ago
Read 2 more answers
Please guys last time I asked this question I didn't get a valid asnwer, just scammers. I'll give you fifty points plus brainly
Keith_Richards [23]

Answer:

Earthquake or Fault

Explanation:

I would say earthquake but I dont know if its looking for something more specific life a fissure or fault. Anyways its geology related because one of the causes is techtonic plates moving.

4 0
3 years ago
A _______ is a segment of a DNA molecule which codes for a specific protein, while a __________ is a long molecule of DNA wrappe
PtichkaEL [24]
The answer:
gene
nucleosome
8 0
3 years ago
Read 2 more answers
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