Mention any two significant roles predation plays in nature.

Mention any two functions of parenchyma.

Predation is usually referred to as a detrimental association. State any three positive roles that a predator plays in the ecosystem.

Name any two natural cycles operating in nature.

Apart from being of the food chain, predators play other important roles. Mention any two such roles supported by examples.

Name the watery fluid secreted from Bruunner',s gland in the duodenum. Mention its two characterstics. What role does ti play inside the duodenum?

Mention any two examples of plants used as wind breakers in the agricultural fields.

Mention four significant services that a healthy forest ecosystem provide.

Complete the missing word in the statement given below: ……….ions play a significant role in clotting.

mention any two applications of a plane mirror.

Mention any two of the seven contrasting traits of garden pen selected by mendel