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3 years ago

Which is the correct response time to stimuli?

Biology

1 answer:

Anit [1.1K]3 years ago

7 0

Answer:

Endocrine system, minutes to days

nervous system, less than one second

Explanation:

Nervous system takes information through senses, processes the information and triggers reactions.

Nervous system has less reaction time because it uses electrical signalling (neural impulses) while Endocrine system uses chemical signalling (hormones).

The endocrine system responds to stimulus by secreting hormones in the blood (circulatory system) that travels to the target organ, and hence take more reaction time.

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1. How did dark matter affect the development of structures in the early universe?

-Dominant- [34]

Answer:

1. It seeded the development of galaxies

2. The percentage of dark matter has shrunk in scientists' estimates since the 1980s

The percentage of unknown material has grown in scientists' estimates since the 1970%

3. Supernovae that are moving away at an accelerating rate.

Explanation:

1. How did dark matter affect the development of structures in the early universe?

It seeded the development of galaxies.

It seeded the development of quasars.

It cooled pockets of gas to form nebulae.

it became part of black holes

2. How has scientific understanding about the composition of the universe changed over time? Select the two correct answers.

The percentage of dark matter has shrunk in scientists' estimates since the 1980s

The percentage of unknown material has grown in scientists' estimates since the 1970%

The percentage of ordinary matter has grown in scientists' estimates.

The percentage of dark energy has shrunk in scientists estimates

3. Which is evidence for the existence of dark energy?

Pulsars that seem to be moving closer at an accelerating rate.

Supernovae that are moving away at an accelerating rate.

Black holes that are expanding at a constant rate.

Galaxies that are rotating at a constant rate.

Please don't use these answer's to cheat they are to help only.

6 0

3 years ago

During which phase mitosis do the nuclear membrane nucleolus and dissolve

Lisa [10]

Prophase is the right answer

5 0

3 years ago

What is missing from this food chain?

Ierofanga [76]

the decomposer is missing. The rabbit is the herbivore, the rasberry bush is the producer, and the owl is the consumer. The decompoer is the only thing not on there.

8 0

3 years ago

Read 2 more answers

After intense activity, your muscles feel sore because of

velikii [3]

Answer:

After intense activity, your muscles feel sore because of _____. a) the accumulation of NAD+ b) the accumulation of lactic acid c) the accumulation of ATP d) the accumulation of carbon dioxide. B. ... ATPc "carbon planet," because carbon is the central element in organic compounds. ... After intense activity, your muscles feel sore because of a. the accumulation of NAD+. b. the accumulation of lactic acid. c. the accumulation of ATP. d. the accumulation of carbon dioxide. b. the accumulation of lactic acid.

Explanation:

srry if this dosent help

5 0

3 years ago

What is the effect of human activity on the amount of carbon stored in sinks?

blondinia [14]

The effect of human activity on the amount of carbon stored in sinks is that humans are pulling out the carbon and burning it at a fast pace through activities like mining. The has greatly contributed to the effects such as global warming. I therefore, think that humans are supposed to seek for alternate sources of energy to prevent these effects of global warming.

5 0

3 years ago