Which factor plays a central role in determining which of the brain's synapses will be eliminated and which will be maintained?

Biology

1 answer:

likoan [24]3 years ago

5 0

Answer:

The answer is "frequency with which they are activated".

Explanation:

Frequency refers to the number of consecutive repetitive events per unit time. It is measured in hertz (Hz), equivalent to a single event per second. The time is the number of one cycle in a recurrent event, and so the duration is the same for the frequency, hence the frequency at which they are triggered is a key determinant of the brain's connections to be eliminated and maintained.

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When Mr. Valdez thought his 1-year-old daughter had fallen down the stairs, his heartbeat accelerated, his blood pressure rose,

prohojiy [21]

Answer:

Sympathetic Nervous System.

Explanation:

Sympathetic nervous system is one of the parts of Autonomic nervous system and the other part is Parasympathetic nervous system.

As a whole the autonomic nervous system controls the unconscious responses of our body.

The main function of the Sympathetic nervous system is to stimulate the 3F response of the body. Here 3F refers to Fight, Flight and Freeze. Adrenal gland is stimulated by this system which secretes adrenaline. Due to the effect of adrenaline heart neat increases, blood pressure increases, pupils dilate, sweat glands are activated, peristalsis in the gut is inhibited, and kidney secretion increases.

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4 years ago

Which study led biologists to infer that the ancient archosaur was active during the night? ancestral state reconstruction sugge

MrRissso [65]

The correct option is this: ANCESTRAL STATE RECONSTRUCTION SUGGESTING THAT THESE ANIMALS HAD OPSINS THAT WERE SHIFTED TOWARD THE RED.
Ancestral reconstruction is the extrapolation back in time from measured characteristics of individuals to their common ancestors. Opsins are a group of light sensitive proteins that are located in the photoreceptor cells of the retina of the eyes. Having opsin that were shifted toward the red colour will enable the animal to see very well in the night time, thus, the animal will be active during that period.

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3 years ago

Bradley improved his hitting after taking batting practice. A. Bradley improved his hitting B. after improvement C. taking batti

Andre45 [30]

A because the others didn't make no sense

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3 years ago

if you blow up a balloon and then hold it in front of the fire,it increases in side. is the balloon growning in biological sense

anastassius [24]

No, it's because the gases are being heated. Gases expand when heated, and that's what you'd be seeing.

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4 years ago

What is the name of the first amino acid you dragged into place using the Universal Genetic Code chart?

Rasek [7]

Ans. Phenylalanine.

Genetic codes or codons are triplet codes, made up of three nucleotides. Each genetic code codes for a particular amino acid during translation. There are total 64 codons, out of which 61 codes for amino acids, while 3 act as stop codons.

According to Universal Genetic Code chart, first genetic code is UUU that codes for phenylalanine amino acid.

Thus, the correct answer is option). 'phenylalanine.'

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3 years ago