2 years ago

When we see chiasmata under a microscope, that lets us know which of the following has occurred?

1 answer:

ioda2 years ago

4 0

When we see chiasmata under a microscope, that lets us know that prophase I has occurred. During this phase of meiosis, the nuclear envelope breaks up and disappears, and so does nucleolus. The chromosomes become visible at this point.

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Robert Paine studied sea stars in the intertidal zone along the northern Pacific coast. When he removed sea stars from a study a

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Explanation:

In the given example sea star played the role of keystone species

Robert Paine actually coined the term keystone species to describe the effect that the sea stars had on biodiversity in this community
Keystone species are those species which are least abundant but play a governing role to decide the structure and function of community
Loss of keystone species in a community can lead to disturbance in structure and function of a community and it cannot be recovered by other species