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Stels [109]
3 years ago
14

Why do many environmental agencies promote conservation of water even though a large portion of Earth's surface is covered with

water?
1)

There may be a shortage of clean drinking water in the future.


2)

They fear that all water on Earth will be used up one day.


3)

They wish to increase navigation in conserved water.


4)

Conserved water can be used to generate electricity.
Biology
1 answer:
Nadusha1986 [10]3 years ago
8 0
There may be a shortage of clean drinking water in the future
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Nicotinamide adenine dinucleotide phosphate (NADP ) is a biological oxidant involved in the oxidation of testosterone to estradi
ankoles [38]

Answer:

False.

Explanation:

NADP does not  convert  testosterone to estradiol. This oxidation  is done by a steroid   17-a-hydroxysteroid dehydrogenase.

This oxidation  is essential for stability of hormone: it helps to regulates the elevation of Testosterone in women,subduing the manifestation of male sexual characteristics,

and

for preventing autoimmune diseases.

<u>The oxidation involved two basic  steps of  reaction, controlled by two different enzymes.</u>

<u>NADP is a Co- factor,  when in reduced form( NADPH) is used in Calvin cycle, of light independent reaction of photosynthesis, and in Nucleic acid and triglycerides synthesis</u>.

It has nothing to do with conversation of Androgen( testosterone  to Estradiol.

8 0
3 years ago
ASAP i need help The palisade layer _____. A.contains chloroplasts B.is where photosynthesis happens C.is located in a plant lea
zaharov [31]

Answer:D. all the above

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Isovolumetric relaxation and ventricular filling (two phases of the cardiac cycle) take place during __________. Isovolumetric r
Helga [31]

Answer:

Option B, ventricular diastole

Explanation:

Ventricular diastole also termed as ventricular relaxation consists of two phases. In the first phase, the following set of events takes place –  

a) Relaxation of ventricle muscles

b) Reduction in pressure  of blood within the ventricles

c) As this reduced blood pressure gets lower than that of pressure with in the pulmonary trunk and aorta, blood starts flowing back towards the heart.

d) A small dip in the blood pressure is observed at this stage

e) Volume at this stage remains constant as the atrioventricular valves remain closed

f) This phase is known as isovolumic ventricular relaxation phase

In the second phase, the following set of events takes place –

a) Relaxation of ventricular muscle  

b) Dropping of pressure of the  blood within the ventricles lower than that of pressure of blood in the atria

c) Blood starts flowing from atria into the ventricles thereby opening the tricuspid and mitral valves

d) Both the heart chambers chambers are in diastole,  

e) Atrioventricular valves are open

f) Semilunar valves remain closed  

Hence, option B is correct

3 0
3 years ago
What prevents bullets striking a soldier's chest when h e is on the trench board (fire step)?
Ivanshal [37]
The answer would be the sandbag wall.

Stacks of sandbag will be put in front of the trench to protect the soldier. When the soldier stands inside trench all of his body is covered. But when he stands on trench board, the height increased so that the chest might be exposed. Sandbad will be helpful to stop the bullet that aimed at the chest region.
8 0
3 years ago
The phenotype of an animal typically does not depend on
Ne4ueva [31]

The answer is B.  While some animals' colors and coat thicknesses change with the seasons, this has more to do with reacting to the change in seasons than with genetics.

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3 years ago
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