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Aliun [14]
3 years ago
15

I also need help on this

Biology
1 answer:
laiz [17]3 years ago
7 0
Lol it is a a a a aa a a a aa a a the answer is a
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14. When one lion in a pride is alarmed by danger in their territory, it becomes alert and tense. Immediately
Alborosie

Answer:

d. Natural selection.

Explanation:

i know it is def not b because that is inside the body lol and i dont think its a either, I could be wrong tho.

8 0
3 years ago
A scientist conducted an experiment to investigate the effect of uv radiation. why is it important for another scientist to cond
miskamm [114]
<span>to verify the data to make the results of the investigation stronger and more reliable</span>
8 0
3 years ago
The ear functions because of what?
AveGali [126]
Ear is a sensory organ responsible for hearing and listening. It is connected by the auditory nerve which serves as the messenger of information from the sense organ to the brain specifically in the primary auditory cortex.

The ear functions because of its structure that displays and initiates many transformation and accommodation of sound waves to able to translate them and understand these sensations for sound acuity. The pinna, the eardrum, the cochlea and the most important part of the ear is the hairlike structures in the cochlea which transduces these sound waves into meaningful information (perception).
5 0
3 years ago
Clinical manifestations of hypocalcemia include which of the following? (Select all that apply.) Positive Trousseau sign Positiv
kumpel [21]

Answer:

Positive Trousseau sign

Positive Chvostek sign

Hyperactive reflexes.

Muscle twitching, Paresthesias

When the blood conce

Explanation:

When the blood ca+ concentration falls below  the standard of 4.4-4.5mg/dL,that is below 4.4mg/dL the clinical condition is called hypocalcemia. It is caused by hypothyroidism,due to  malfunction of the parathyroid gland.

Generally, Ca+ is needed for contraction of muscles by causing the fusion of the vesicles containing neurotransmitters to the presynaptic membrane for the passage of neuro transmitters  to fuse with the receptors on the sarcolemma to initiate  muscular contractions by opening of ligand gated Na+. It also interact with the ligand gated  sodium ion channels

Generally,Ca+ inhibits depolarization of ligand gated Na+ channels. Thus blocks the opening of these channels and therefore the rate of excitability.Therefore, If the is low serum levels of Ca+,There is increased in the threshold of depolarization because more ligand gated Na+ channels are opened,Thus their is increased excitability of nerves and muscles fibres therefore in the  clinical manifestations listed above.

It can be treated with infusion of Ca+ into the blood.

7 0
3 years ago
This picture shows the surface weather model at a particular location. Image shows a weather symbol with the following attribute
Naya [18.7K]

Answer:

hurricane

Explanation:

according to the question above it's most likely to be hurricane

8 0
4 years ago
Read 2 more answers
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