Which best summarizes the concept of natural selection?

When are electrons able to be pushed and move freely

Mariulka [41]

No lo se pero buen día ciela pásala rico

4 0

3 years ago

Describe how climate would be influenced if:

madam [21]

The rate of energy coming from the Sun changes slightly day to day. .It has been suggested that changes in solar output might affect our climate—both directly, by changing the rate of solar heating of the Earth and atmosphere, and indirectly, by changing cloud forming processes.
The axial tilt angle affects climate largely by determining which parts of the earth get more sunlight during different stages of the year Likewise, during winter for the northern hemisphere, there would be fewer hours of daylight because the northern hemisphere would essentially be pointed away from the sun.
If an asteroid were to strike land or a shallow body of water, it would eject an enormous amount of dust, ash, and other material into the atmosphere, blocking the radiation from the Sun. This would cause the global temperature to decrease drastically.
The Sun's irradiance has its greatest effect on Earth's upper atmosphere, while the lower atmosphere insulates Earth from the increased heat. If the Sun were driving Earth's warming, one would expect to see that upper atmosphere getting increasingly hot.\
have a nice day sorry if wrong T_T

4 0

2 years ago

True or False: Humans have radial symmetry

aliina [53]

Answer:

false

Explanation:

not everyone has radial symmetry

6 0

3 years ago

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Systolic blood pressure is the amount of pressure that blood exerts __________

andrey2020 [161]

Answer:

while the heart beats

Explanation:

Blood pressure of the heart is the pressure by which heart pumps blood through the arteries. Since the blood flow through the heart and arteries is pulsatile, there are two heart blood pressures: systolic and diastolic blood pressure. Normal systolic pressure is about 120 mmHg.

Diastolic blood pressure is the pressure of the blood between heartbeats (when heart is not active, relaxed). Normal diastolic blood pressure is about 80 mmHg.

3 0

3 years ago

Propose an explanation for why operons evolved in prokaryotes. what advantage do organisms have when they group genes together w

astra-53 [7]

Operons afford the organism the opportunity to simultaneously regulate transcription of multiple genes, whose products are active in the same process. Operons lead to the synthesis of groups of functionally related enzymes, usually from a single mRNA transcript hence makes regulation of the genes highly efficient.

5 0

3 years ago

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