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Read the text and answer the question by selecting all the correct responses. More than one response is correct.

How are we tend to know their totally different feeding preferences? The solution lies in 2 associated differences among the species, in their digestive systems and body sizes. According to their digestive systems, these herbivores can be divided into 2 categories: the non-ruminants (such as the zebra, which has a digestive system like a horse) and also the ruminants (such as the wildebeest, topi, and gazelle, which are like the cow). Non-ruminants cannot extract a lot of energy from the hard parts of a plant; however, this is more than made up for by the quick speed at which food passes through their guts. Thus, once there is only a little supply of poor-quality food, the wildebeest, topi, and gazelle enjoy an advantage. They are ruminants and have a special structure (the rumen) in their stomachs, which contains microorganisms which can break down the hard parts of plants. Food passes only slowly through the ruminant’s gut as a result ruminating—digesting the hard parts—takes time. The ruminant frequently regurgitates food from its abdomen back to its mouth to chew it up further (that is what a cow is doing when “chewing cud”). Only when it has been chewed up and digested almost to a liquid can the food pass through the rumen and on through the gut. Larger particles cannot meet up with till they have been chewed down to size. Therefore, once the food is in short supply, a ruminant can last longer than a no ruminant as a result of it will derive additional energy out of identical food. The distinction will partially explain the eating habits of the Serengeti herbivores. The zebra chooses areas where there is more little-quality food. It migrates initial to unexploited areas and chomps the abundant low-quality stems before moving on. It is a fast-in/fast-out feeder, hopping on a high output of incompletely digested food. By the time the wildebeests (and other ruminants) arrive, the grazing and sounds of the zebras can have worn the vegetation down. As the ruminants then set to figure, they eat all the way down to the lower, leafier components of the vegetation. All of this fits in with the variations in abdomen contents with that we have a tendency to began. They eat all the way down to the lower, leafier components of the vegetation. All of this fits in with the variations in abdomen contents with that we have a tendency to tend to begin.

Q. According to the paragraph, which of the following are true of East African gazelles:

(A) They digest their food very quickly.
(B) Microorganisms help them digest their food.
(C) They are unable to digest large food particles unless these are chewed down considerably.
(D) They survive well even if food supplies are not abundant.

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