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Yuki888 [10]
3 years ago
10

How Primary and secondary succession happen?

Biology
1 answer:
Vera_Pavlovna [14]3 years ago
3 0

Answer:

In primary succession, newly exposed or newly formed rock is colonized by living things for the first time. In secondary succession, an area that was previously occupied by living things is disturbed, then re-colonized following the disturbance.

Explanation:

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An animal trainer is conditioning an elephant to startle at the sound of a trombone. Every time she plays the trombone, she then
ANTONII [103]

Answer:

The correct answer is option D, that is, the elephant will not react.

Explanation:

A kind of behavior that comprises a stimulus-response, which is distinct from the natural one is termed as conditioning. It is a kind of learned behavior. It is a kind of learning where the efficacy of stimulus enhances while provoking a response. When the presentation of two stimuli is done at a suitable time and with appropriate intensity, then one of them will be able to provoke a response that resembles the other one.  

In the given case, the mouse and the trombone are termed as unconditioned and conditioned stimuli. When a conditioned stimulus is demonstrated in a context of classical conditioning, it will result in the non-predication of the coming unconditioned stimulus. The conditioned response will get to cease slowly and will eliminate the conditioned fear. Thus, in the given case, the elephant will fail to react towards the trombone subsequently.  

8 0
4 years ago
pick two structures from an animal cell and explain how they work together and how their functions are vital in keeping the cell
ad-work [718]

Answer:

the cell membrane is the semi-permeable protective cover that keeps the cell held together. the cytoplasm is semi-fluid within the cell membrane that keeps the cell in shape.

Explanation:

3 0
3 years ago
How contour farming can solve <br> two environmental problems.
jasenka [17]

Answer:

1. reducing soil erosion,

2.Controlling runoff water

Explanation:

Contour farming mitigates the impacts of floods, storms and landslides on the crops by reducing soil erosion up to 50 percent, controlling runoff water, increasing moisture infiltration and retention and thus enhancing soil quality and composition

3 0
3 years ago
What is true about organisms that are a part of the same clade?
Natasha_Volkova [10]

The correct answer is B. They evolved from a shared ancestor

Explanation:

In biology, the word clay refers to a set of organisms that have a common ancestor and because of this, they are placed in the same ramification or branch in a phylogenic tree, which allows biologists to classify organisms in groups. For example, all birds are believed to have a common ancestor and therefore they formed a clade. However, belonging to the same clade does not imply the same exact classification, identical phylogenies or characteristics because these depend on each species and varies due to the evolution process. Therefore the statement that is true about organisms that are part of the same clad ie that they evolved from a shared ancestor.

4 0
3 years ago
What
Alex Ar [27]

Answer:

A.

Explanation:

4 0
3 years ago
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