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3 years ago

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When a seed germinates, its root grows downward in response to gravity. This is called _______. A. thigmotropism B. negative tro

pism C. gravitropism D. phototropism

1 answer:

Alexeev081 [22]3 years ago

5 0

Gravitropism is your answer.

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As global temperatures rise, the ice caps are expected to melt at an alarming rate. This will cause ocean levels to rise. Predic

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Which branch of the autonomic nervous system (ans) mobilizes the body during extreme situations, such as rage or fear?

Shalnov [3]

There are two branches of the autonomic nervous system, namely the sympathetic nervous system and the parasympathetic nervous systems. Both of which regulates bodily functions involuntarily but in different manners. The parasympathetic system is the system primarily activated in "relaxed" states or "rest and digest" states. These include digestion, urination, slowing of heart rate, slowing of respiratory rate, etc. The sympathetic nervous system on the other hand is primarily activated by "flight or flight" response such as rage or fear. These include inhibition of digestion, increase in heart rate and respiratory rate, sweating, etc.

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3 years ago

At what depth(km) would a rock experience temperature of 5500C?

kow [346]

Explanation:

A rock would experience a temperature of 5500°C is about the core which is at a depth of 220km.

But let us use the earth's geothermal gradient to solve this problem.

The geothermal gradient is the rate at which temperature is increasing with depth.

The geothermal gradient 25°C/km

At 5500°C,

5500°C x $\frac{1}{25}$ $\frac{k}{C}$ = 220km

But this is not so in nature, there are other heat sources that contributes to increasing temperature with depth such as radioactive heat and frictional heat.

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3 years ago