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Akimi4 [234]
3 years ago
5

Which conditions are required for natural selection?

Biology
1 answer:
vichka [17]3 years ago
4 0
Factors required for natural selection to occur are:
- Overpopulation/ too many offspring
- Variation in the species
- Favorable traits must be selected
- Adaption (through reproduction, the favorable traits are exhibited.)
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Local and global winds are set in motion by air moving in convection cells. Describe the motion of air in a convection cell. Be
IrinaVladis [17]

Answer:

Due to the earth spherical shape, different latitudes of the planet receive varying solar energy levels from the sun. This is due to the differences in how the sun rays hit the earth surfaces and differences in the length of atmosphere the rays have to travel before they reach the earth's surface.

The equatorial regions get the most energy levels from the sun hence their atmosphere gets heated faster and the hottest. The air mass in this latitude, therefore, gets less fast dense  and begins to rise. The cooler and denser air mass from the poles rushes in, through the  lower atmosphere, to replace the void of the rising air.

When this air mass also gets heated, it too begins to rise. Remember the initial air mass cooled as it rose into the upper atmosphere. This now makes it denser than the air mas below it. As the hotter air mass begins to rise from below it pushes the cooler air mass above laterally. After the lateral movement, the air mass begins to sink slowly as it moves towards the poles because the incoming air mass gets denser than the local air mass.

The lateral movement of the convection current moving to the north is deflected to the north-west due to the Coriolis effect of the earth rotation while the lateral movement of the convection current moving south is deflected to the south-west. These pockets of convection currents are called Hadley cells.

Learn More:

brainly.com/question/2160034

#LearnWithBrainly

8 0
3 years ago
During aerobic respiration, electrons travel downhill in which sequence?
iris [78.8K]

Answer:

The correct answer will be option-B.

Explanation:

Cellular respiration is a slow process which produces energy from the oxidation of food components which could be glucose, fatty acids and proteins.

The process proceeds in four steps: glycolysis, link reaction, Krebs cycle and electron transport chain.

The energy molecules are produced when a high energy electron gets reduced and the released energy is stored in the form of energy molecules which could be ATP or energy equivalents like NADH and FADH₂.

These reducing equivalents donate its electrons during electron transport chain where the electrons flow to the last electron acceptor called oxygen.

Thus, Option-B is the correct answer.

3 0
3 years ago
What part of the nervous system is known as the mini brain of the gut
dezoksy [38]
The Enteric Nervous System is known as the mini brain of the gut.
5 0
3 years ago
Which of the following is not a consequence of oil spills for marine life?
aliina [53]

Answer:

B. removes nutrients form seawater

Explanation:

By process of ellimation, B is correct. Oils do disable fur insulation by damaging the fur of most animals. It spreads out becasue water and oil are differnet denisty and dont mix. Oil, overall, makes feathers less water-repellent bu exposing them to harsh chemicals.

7 0
3 years ago
HURRY WILL GIVE BRAINLIEST!
san4es73 [151]

Answer:

Abuse

Explanation:

I don't know for sure, but it seems like the best option.

4 0
3 years ago
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