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igor_vitrenko [27]
2 years ago
4

Long-term potentiation (ltp) involves repeated _____ electrical stimulation resulting in a _____ in synaptic effectiveness.

Biology
1 answer:
Tpy6a [65]2 years ago
8 0
<span>(C) is the most correct answer. With long-term potentiation, a high-voltage stimulus is attached to the neuron. Over time, this increased stimulation without time allowed for a refractory period will render the neuron incapable of firing when its depolarization reaches the proper threshold.</span>
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When an insect touches the bristles on the lobes of a Venus flytrap, the lobes close quickly, engulfing the insect. The movement
Mashcka [7]

Answer: Option C. Predation

Explanation:

The predation type of relationship consists of the interactions between two species and their consequent effects on each other. In the predator prey relationship, one species is feeding on the other species. The prey species is the animal being fed on, and the predator is the animal being fed.

The flytrap is an example of a predator because, it secrete digestive enzymes that kills the insect. The insect is an example of a prey because, the insect was engulfed by the flytrap.

5 0
2 years ago
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The human genome contains about 3 billion base pairs. During the first cell division after fertilization of a human embryo, S ph
Nataly [62]

Answer:

5556

Explanation:

If a DNA polymerase synthesizes in average 50 nucleotides/second, that means that in three hours (10800 seconds) it synthesizes about 540000 nucleotides.

However, if the human genome is composed of 3000000000 (3 billion) base pairs (nucleotids), the minimum number of DNA polymerases (working in the same number of origins of replication) to finish the duplication of all the genome in three hours is 5555,5. (3000000000/540000). As we know there is no half polymerase, so we round to 5556.

5556 molecules of DNA polymerases acting on 5556  origins of replication are needed.

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2 years ago
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How can beavers help dry areas? Fill in the inference in the chart.
lana [24]

Answer:

Beaver are helping to keep water in areas that would otherwise be dry." Even during drought, where beaver were present, there was 60 per cent more open water than those same areas during previous drought periods when beaver were absent.

Explanation:

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A DNA sequence reads: AGGCCATATATG. Which of the following is the correct complementary DNA strand?
sp2606 [1]

Answer: Assuming you mean 'Which of the following is the correct complementary RNA strand?' The answer is D.

Explanation: This is because RNA is A=U G=C T=A

8 0
2 years ago
1)When a phosphate is transferred from ATP, it can phosphorylate another molecule. How could this assist in allowing a protein t
Andrews [41]

Answer/Explanation:

1) When phosphate is transferred from ATP, (which forms ADP and releases energy) it can phosphorylate another molecule. When this molecule is phosphorylated. It could become "energized" as it enters a higher energy state.

In this higher energy state, the protein has the energy to transfer molecules against a concentration gradient, which is an active process (requires energy).

2) Adenosine triphosphate contains three phosphate groups. The phosphate bonds are high energy. When ATP is hydrolyzed (water is added), these high energy phosphate bonds are broken and energy is released. This forms adenosine diphosphate (ADP).

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2 years ago
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