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tiny-mole [99]
3 years ago
13

What are viral hémorragie fevers (VHFs) ?

Biology
1 answer:
Inga [223]3 years ago
7 0

Answer:

Any of a group of infectious diseases that interfere with the blood's ability to clot

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. What will happen if: a. Ligaments gets over stretched? b. Striated muscles contracts rapidly for longer duration?
Allisa [31]

Answer:

a) This may result in severe pain in the affected part accompanied by swelling

b)If striated muscles contract rapidly for a longer duration, it can cause fatigue, muscle cramps and even loss of energy.

Explanation:

6 0
3 years ago
Under certain circumstances, potassium ions ( K + ) in a cell will move across the cell membrane from the inside to the outside.
dexar [7]

Answer:

8.18 × 10 ⁻²¹.

Explanation:

The potential energy may be defined as the energy stored in the rest objects. This energy is important for the maintenance of the concentration gradient in the cell.

The change in the potential energy can be calculated as follows:

W = v2-v1 × q.

Here, the charge of the proton is considered because k+ ions has been used.

W= 0 - ( - 70. 5 mV) × 1.602 * 10^-19 C.

W= 8.18 × 10 ⁻²¹J.

Thus, the answer is 8.18 × 10 ⁻²¹.

5 0
3 years ago
Fossils may be:
Andru [333]

Answer:

The correct answer is option (e)-"All of the answer choices are correct".

Explanation:

Fossils are defined as the remains of ancient organisms. Fossils are obtained from impressions left after an organism decays. There are different kinds of fossils depending on the material they are made of and how they were formed. Some fossils are made from minerals that are the replacement of the organic matter of the ancient organism, or are the replacement of mud that came from footprints. Alternatively, fossils could be plant resins or tar that preserved a specimen within.

7 0
3 years ago
Why are contractile vacuoles important to unicellular organisms like paramecia
katrin [286]

A contractile vacuole works just the same as the name suggests, in that it expands and contracts. The point of the contractile vacuole is to pump water out of the cell through a process called osmoregulation, the regulation of osmotic pressure. It occurs in freshwater protists, but mainly in the kingdom Protista as a whole.

4 0
3 years ago
What is turgor pressure, what causes it, and what does it do for a plant?
ANEK [815]

Turner pressure is simply the force within the plant cell that pushes the cell membrane or plasma membrane against the cell wall.

It is caused by the Osmotic flow of water through the semi permeable membrane.

It helps the plant cells to remain turgid and stand tall so as to prevent it from wilting

4 0
3 years ago
Read 2 more answers
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