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3 years ago

The caretaker of a farm feeds hay to the cows to procure milk from them. How much energy will the cows get from the hay?

Biology

1 answer:

nikitadnepr [17]3 years ago

5 0

Answer: C) 10%.

Explanation:

The cow will get only 10% energy from the hay as the transfer of energy from a lower to a higher trophic level follows the ten percent law.
According to the ten percent law of energy transfer, only 10 percent of the total energy gets transferred to the next trophic level in a food chain.
For example, if the hay had 100 joules of energy, the cow will get only 10% of 100 J i.e 10 J energy.
The reason why only ten percent energy is transferred is because the rest is lost in the form of heat in the atmosphere.

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3 years ago

Calculate the net force on the Fx and Fy of 20 N 17 N 45.50 250

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Answer:

$F_{net}$ is 26.25 N

Explanation:

Given that: $F_{x}$ = 20 N, $F_{y}$ = 17 N.

This implies that the two forces are acting at right angle to each other. Thus applying the Pythagoras theorem, we have;

$F_{net}$ = $\sqrt{F_{x} ^{2} + F_{y} ^{2} }$

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3 years ago

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Answer:

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2 years ago

Which of the following outcomes is observed during Rabies virus pathogenesis?

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Answer:

c) Negri bodies are a diagnostic sign of Rabies virus infection.

Explanation:

Rabies is an infection caused by rabies virus which affects the neurons and causes inflammation of the brain. It is a deadly disease and many animals are carriers of this disease like dogs, cats, raccoons, wolf, bats, fox, etc.

It is diagnosed by the presence of Negri bodies in the cytoplasm of nerve cells. Negri bodies are inclusions that are round or oval shapes having a size between 0.25 to 27 μm. Negri bodies can be frequently diagnosed in Purkinje cells of the cerebellum and pyramidal cells of Ammon’s horn.

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3 years ago