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stich3 [128]
3 years ago
12

About how many brain connections will be present on average for a 3 year old

Biology
2 answers:
Liono4ka [1.6K]3 years ago
5 0
About 1,270 or 1,090 Brian connections
valkas [14]3 years ago
4 0
Not much because the baby's have alot of bones but when it comes to nerves it is a little bit babys need time to regenerate
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Outline the levels of organization of a complex, multicellular organism such as a mouse, starting with the cell.
kirill115 [55]

Answer:

a mouse has at least 1 billion cells

Explanation:

7 0
3 years ago
Write 8 examples on possible hazard in raising four-legged animals and fish​
dedylja [7]

Answer: The below are following hazards of four-legged animals and fish.

Explanation:

The four legged animals like cats, dogs, horse, and others need proper shelter, food, and care to survive.

They need to be taken outdoors for excretion, and walk.

The mating period is not fix and not easily done.

The four like fishes like turtle and squid are difficult to be handled in aquarium.

The four legged fishes do not come in fishing net during aquarium cleaning.

There are chances of being biten by four legged animals and their associated diseases like rabies.

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The animal noise like dog bark can cause noise pollution.  Thus can lead to problem of hypertension.

3 0
3 years ago
Describe the effects of NE and Ach on contractile force that you observed today. Given your knowledge of sympathetic and parasym
Afina-wow [57]

Answer:

The answer is Norepinephrine.

Explanation:

Acetylcholine (Ach) and Norepinephrine (NE) are both chemical substances (neurotransmitters) released primarily by nerve cells and they affect different parts and systems of the body. Acetylcholine mostly targets the muscles and the brain and it is a part of the parasymphatetic nervous system whereas norepinephrine targets the whole body and has an effect that leads to the contraction of muscles and the increase of the heart rate. Norepinephrine is a part of the symphatetic nervous system.

Since the symphatetic nervous system is responsible for the crucial "fight-or-flight" response of our body, it has a more dramatic effect on the muscle contraction. Norepinephrine, being a part of the symphatetic nervous system, should result in a more drastic change in contractile force.

I hope this answer helps.

3 0
4 years ago
According to Lamarck the long neck of a giraffe
Gre4nikov [31]

Answer:

i believe it is a. none of the above.

Explanation:

lamarck's idea suggested they stretched their necks and passed the stretching down through generations.

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3 years ago
What adaptations allow deep sea creatures to survive in extreme environments essay?
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The deep sea vent organisms or benthic organisms normally live in dark conditions because of no penetration of sunlight. These organisms in order to colonize ocean surface must develop photo sensory receptors and should adapt to the light conditions along with variation in temperatures and pressure in ocean currents.
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3 years ago
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