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Nataliya [291]
3 years ago
5

Surfactant:

Biology
1 answer:
BARSIC [14]3 years ago
3 0

Answer:

The correct answer will be option-D

Explanation:

Pulmonary Surfactant is a complex substance produced by the pneumocytes epithelial II cells in the alveolar sac.

The surfactant is composed of the proteins and lipids which plays a role in keeping alveoli open by reducing the surface tension formed between the air and liquid.

The surfactant act by forming a monolayer surface film which helps reduce the surface tension.

Thus, option-D is the correct answer.

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What is the relationship of nitrogen and grass
fredd [130]

Nitrogen is the major nutrient required by grass and is used to stimulate high growth rates and is key to achieving high yields, however if too much nitrogen is applied this can have a negative effects on quality.

High rates of nitrogen can also cause problems with silage fermentation due to excess nitrate having a negative impact on the fermentation process and will produce silage that is less palatable and the animals will be less keen to eat it.

<span> <span> </span> </span> <span> Nitrate is generally taken up by grasses quicker than it is incorporated into proteins and until used this excess known as luxury uptake is stored in the leaves. Excess nitrate will be present if insufficient time is allowed between application and mowing and can also occur under conditions of poor growth eg low light levels, cool temperatures. It is also a problem if there is a dry spell after application, when nitrate cannot be taken up by the roots, followed by a period of wet weather that results in luxury uptake. The plant cannot convert it to protein quickly enough so it accumulates in the plant. </span>

High rates of nitrogen may cause a reduction in crop sugars as they are used to provide energy for the increased rate of plant growth and for the manufacture of plant proteins and this increased growth rate may in turn lead to lower crop dry matter content although in practice this is often not significant.

Excess nitrate can be avoided by following the Grassland Rule to apply nitrogen at the rate of no more than 2.5 kg N/ha/day.


7 0
3 years ago
)co-sleeping may be harmful to the baby if the mother _____. awakens frequently is a light sleeper is drugged or drunk is in a f
Afina-wow [57]

Answer:

Drugged or drunk

Explanation:

if the mother is drugged or drunk because the mother wont be able to comprehend whats going on and may role on the baby and may be very harmful

3 0
3 years ago
I NEED HELP PLEASE!!!!!!!!!!!!!!!
velikii [3]

Answer: the ear drum

cochlea

Explanation:

bc They send the sound waves to the inner ear and into the fluid-filled hearing organ (cochlea).

6 0
3 years ago
Read 2 more answers
At the end of the citric acid cycle, most of the energy remaining from the original glucose is stored in?
BlackZzzverrR [31]

Answer:

NADH

Explanation:

5 0
1 year ago
*PLEASE ANSWER ASAP*
Tatiana [17]

Answer:

Explanation:

d.) anterior cruciate ligament (ACL)

5 0
3 years ago
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