EVERYDAY SCIENCE

Detailed explanation-1: -Explanation: A simple sequence in which the grass grows, a cow eats the grass, a human eats the cow, or drinks its milk, is an example of a food chain.

Detailed explanation-2: -Complete answer: Grass is an example of a producer which makes the cow a primary consumer and thereby this option is a perfect fit. This is the correct option.

Detailed explanation-3: -cows eat grass. This is a clause as it contains a subject (cows) and a predicate (eat grass).

Detailed explanation-4: -Animals like cows, goats and buffaloes eat grass. These animals swallow grass quickly and store it in a sac-like structure called the rumen. Rumen forms the first stomach and is four-chambered. Here, food is partially digested and is called the cud.

Detailed explanation-5: -A cow’s rumen is different because it functions like a large food processor. In fact, millions of tiny organisms (mainly bacteria) naturally live in the rumen and help the cow by breaking down plant parts that cannot be digested otherwise. These tiny organisms then release nutrients into the rumen.