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Trava [24]
3 years ago
8

T or F?? earth has an iron mantle

Biology
1 answer:
Orlov [11]3 years ago
6 0
T because the earth has some iron but it has a molten core which is mostly iron giving earth its magnetic field
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Which statement concerning osmosis and active transport is correct?
marshall27 [118]

The question is incomplete, however, the statements associated with this question is given in the comments and here as well:

Neither facilitated diffusion nor osmosis requires cell energy.

Diffusion of gases and other small molecules requires no energy on the part of the cell.

Active transport requires cell energy and osmosis doesn't.

Both endocytosis and active transport require cell energy.

Answer:

The correct answer is - Active transport requires cell energy and osmosis doesn't.

Explanation:

Osmosis is an example of passive transport as it does not require energy to facilitate the movement of solvent In the process of osmosis,. It moves from high concentration to low concentration through the semipermeable membrane which is along the gradient so no requirement of energy.

In the case of Active transport, it requires energy to facilitate the movement of transport as it is the movement of a substance from low concentration to a high concentration area that is against the concentration gradient.

3 0
3 years ago
A study of echinoderm embryos, such as sea stars, confirms a similar developmental pattern to that of vertebrates. In both, the
AlladinOne [14]

Answer:

This is considered as the study of homology.

Explanation:

Homology, studies the comparable characteristics of the physiology, structure or development of various species based on their decent from a similar evolutionary ancestor.

3 0
3 years ago
Rose plant can reproduce by just cutting one of its long stems and stick it to the soil. This is a best example of what type of
Artemon [7]

Answer:

c

Explanation:

8 0
3 years ago
Classical conditioning is
leonid [27]

Answer:

Classical conditioning (also known as Pavlovian or respondent conditioning) is learning through association and was discovered by Pavlov, a Russian physiologist. In simple terms, two stimuli are linked together to produce a new learned response in a person or animal.

The most famous example of classical conditioning was Pavlov's experiment with dogs, who salivated in response to a bell tone. Pavlov showed that when a bell was sounded each time the dog was fed, the dog learned to associate the sound with the presentation of the food.

John Watson proposed that the process of classical conditioning (based on Pavlov’s observations) was able to explain all aspects of human psychology.

Everything from speech to emotional responses was simply patterns of stimulus and response. Watson denied completely the existence of the mind or consciousness. Watson believed that all individual differences in behavior were due to different experiences of learning. He famously said:

Explanation:

8 0
2 years ago
The food oyramid suggest that a healthy diet consist of a large portion of cheese, butter, olive oil, or breads
babymother [125]

I’m not 100% sure but I believe it’s breads since it’s the only food group

8 0
3 years ago
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