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Newsela Formative

Last updated over 2 years ago

4 Nsɛmmisa

1

Asemmisa {{asɛmmisaAhyɛnsode}}

1.

Why did the author use categories of reproductive isolation to organize the article?

to illustrate that plant populations are much more likely to remain isolated than animals

to demonstrate the processes by which scientists have tried to interbreed some species

to elaborate on the specific biological factors that keep populations of species distinct

to compare the most and least effective ways to keep various species from mating

1

1

1

Asemmisa {{asɛmmisaAhyɛnsode}}

2.

Which of the following are reproductive isolating mechanisms (RIMs) that keep different species from reproducing with one another? 1. They are separated by physical or geographic distance. 2. They live and breed in separate and distinct habitats. 3. They flower or mate at different times of the day or year. 4. They have sex organs or gametes that are incompatible.

1 and 2 only

3 and 4 only

1, 2 and 3

2, 3 and 4

Asemmisa {{asɛmmisaAhyɛnsode}}

3.

Read the selection from the introduction [paragraphs 1-3]. So, natural selection favors different characteristics in different situations. These differences accumulate and eventually yield different species. What is the meaning of "yield" as it is used in the sentence above?

produce

accept

surrender

overcome

Asemmisa {{asɛmmisaAhyɛnsode}}

4.

Read the paragraph from the section "Temporal Isolation." In most animal species, members of the two sexes must first search for each other and come together. Complex courtship rituals then take place, often with the male initiating action, and the female responding. This in turn generates further actions until there is sexual intercourse. These elaborate rituals are specific to a species and play a significant part in species recognition. If the order of events in the search-courting-mating process is broken by either of the two sexes, then the entire process will be interrupted. This is known as behavioral isolation. Which phrases from the paragraph help explain what "courtship rituals" means?

generates further; the two sexes

most animal species; significant part

either of the two; behavioral isolation

initiating action; order of events