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lianna [129]
3 years ago
15

How is the majority of energy within an ecosystem lost?

Biology
1 answer:
Alekssandra [29.7K]3 years ago
6 0

Answer:

idekoifoiwhwoifh

Explanation:

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The _____ hypothalamus signals an animal to start eating, whereas the _____ hypothalamus signals the animal to stop eating.
Ivanshal [37]
The lateral hypothalamus signals an animal to start eating, whereas the <span>ventromedial </span>hypothalamus signals the animal to stop eating. So the correct option is the first one.
3 0
3 years ago
The reduction of blood volume occurs following severe dehydration and hemorrhage; however, although dehydration results in an in
Ilya [14]

During bleeding, both formed elements (platelets, white blood cells, red blood cells) and plasma are lost from the circulatory system. They are lost proportionally, so initially there is no change in hematocrit.

Hematocrit is the percentage of the blood volume made up of elements (Hct = cell volume/blood volume). During dehydration, only water and electrolytes are lost, and the number of cells remains constant - the same number of cells in a smaller volume leads to an increase in hematocrit. When the body tries to restore blood volume, the first thing to recirculate is water from the ECF and this increases the amount of water without increasing the amount of red blood cells, so the compensatory mechanism causes the hematocrit to fall.

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5 0
1 year ago
Why do you think diseases vary from generation to generation?
dimaraw [331]

Answer: The virus weakens as time passes.

Explanation:  The virus will weaken continuously during transmission, and  will reduce its toxicity after several generations of transmission, without causing much harm to the human body.

3 0
3 years ago
What would you expect to happen to levels of mevalonate in human plasma if an individual were to go from a meat-containing diet
enyata [817]

Answer:

increase

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The mevalonate pathway is known to generate isopentenyl pyrophosphate and dimethylallyl pyrophosphate, which are used to synthesize diverse compounds including cholesterol and steroid hormones. The levels of mevalonate in human plasma may be used as a measure of cholesterol synthesis. When the cholesterol level is low, it stimulates its endogenous production by the mevalonate pathway. Since it is well known that the vegetarian diet reduces cholesterol, this diet also increases mevalonate levels.

6 0
3 years ago
Which statement is characteristic of streams and rivers
Drupady [299]

Streams or rivers form when water that does not find an underground aquifer, drains off the land by either seeping through the soil or spilling over the surface into the river or stream bed. 

5 0
3 years ago
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