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SVETLANKA909090 [29]
3 years ago
13

Define gestation period​

Biology
1 answer:
suter [353]3 years ago
8 0

Answer:

Gestation period is the fetal development period from the time of conception until birth.

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Parathyroid hormone is the major regulator of the plasma concentration of__________ ions
photoshop1234 [79]

Answer:

Calcium

Explanation:

Parathyroid hormone (PTH) is a hormone that is secreted by the parathyroid gland. It is the major regulator of the plasma concentration of calcium ions. It regulates calcium ions in the kidney, intestine and bones.

In the kidney, is involved in the re-absorption of calcium in distal ducts and the renal collecting duct, it is also involved in activating the conversion of 25-hydroxy vitamin D into 1,25-dihydroxy vitamin D (calcitriol).

In the intestine,  PTH is involved in the absorption of calcium, by increasing vitamin D production.

In the bone, it helps in regulating calcium levels; when serum calcium level is low, PTH stimulates the activity of the osteoclast, to produce more calcium.

4 0
3 years ago
Can plants get diabetes or cancer?
k0ka [10]
The answer you are looking for is No
                           


7 0
3 years ago
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Human activity can be very disruptive to an
leonid [27]
Secondary succession i think! i’m not sure though.

secondary succession: animals recolonize after a disturbance such as a fire/destruction of their habitat (deforestation)

primary succession: devastation begins in a lifeless area.

in this case, the forest had living organisms, therefore, i don’t think it can be primary.
4 0
3 years ago
Evaluate the analogy of tropical rain forests being referred to as the "lungs" of earth.
Rina8888 [55]
As trees takes in carbon dioxide and gives out oxygen, it is almost similar to how our lungs work in our respiratory system. As you know, lungs remove carbon dioxide from our body and transports oxygen in order for us to survive. So the tropical rainforests gives out oxygen for our survival needs, which is somewhat similar.


I hope you understand lawl
8 0
3 years ago
The Sun's energy _______ weather conditions on the Earth.
NikAS [45]
Is the main cause of
6 0
3 years ago
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