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denis23 [38]
3 years ago
10

21. In 1960, an invasive species of fish was introduced into the stable ecosystem of a river.

Biology
1 answer:
amid [387]3 years ago
3 0
4) ecological niche without competition
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What is the name given to the study of classifying organisms
Len [333]

Answer:

Taxonomy!

Explanation:

4 0
3 years ago
Which are come of the advantages of body segmentation?
Len [333]

Answer:

b. Segments can become specialized on a particular function

Explanation:

Segmentation conditions virtually every aspect of the structure and functioning of animals with a consecutive body. Generally speaking, we can say that the main advantage of segmentation is that each segment can become specialized in a specific function.

One of its advantages is related to locomotion and comes, on the one hand, from the fact that the volume of celiac fluid remains constant in each compartment, acting as an antagonistic force against which muscles can act and, on the other, from the possibility of independently control each segment . This allows the peristaltic movement (circular muscle contraction wave followed by longitudinal muscle contraction) to be localized and involve only those muscles that are strictly necessary, making the movement's energy needs considerably more profitable.

The compartmentalization of the body led to the repetition of structures, namely excretory, nervous and circulatory in each segment. This can be seen as another advantage of segmentation as it may lessen the impact of damage to the animal's body; Undamaged segments can maintain their normal functions and thus increase the likelihood that the animal will overcome the damage sustained.

Another advantage is that segmentation allows modification of certain portions of the body to perform specialized functions such as feeding, locomotion and reproduction.

7 0
3 years ago
The motion of an object can be described by its
DerKrebs [107]

Answer:

D.

Explanation:

It is all of these because the motion is A. speed because when something is moving it has a certain speed. B. position. it's motion determines its next position. direction because without direction it would not move. direction DIRECTS it which way to go. so D. , all of them

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3 years ago
Which type of organisms is able to cause a contagious disease A: plant B:animal C:bacteria D:virus
VMariaS [17]
The answer is either C because both C and D cause disease, but only C is a living organism. Hope that helps!

7 0
4 years ago
Read 2 more answers
Which trait distinguishes the kingdom of bacteria and archeae
Degger [83]

Answer:

Cell walls

Explanation:

virtually all bacteria contain peptidoglycan in their cell walls; however, archaea and eukaryotes lack peptidoglycan. Various types of cell walls exist in the archaea. Therefore, the absence or presence of peptidoglycan is a distinguishing feature between the archaea and bacteria

7 0
3 years ago
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