Assertion: Acraniata is a group of organisms which do not have distinct cranium.
Reason: It includes small marine forms without head.

Assertion : Acraniata is a group of organisms which do not have distinct cranium. Reason : If includes small marine forms without head.

Assertion: Acraniata is a group of organisms which do not have distint cranium. Rerson: It inludes small marine forms without head.

Assertion : Functional group is responsible for the characteristic of the compounds . Reason : The chemical properties of organic compounds are determined by functional group.

Assertion : Systematics is defined as the science of diversity of organisms in evolutionary context. Reason : Systematics include interrelationship between organisms.

Assertion : Systematics is defined as the science of diversity of organisms in evolutionary context. Reason : Systematics include interrelationship between organisms.

Assertion : Systematics is defined as the science of diversity of organisms in evolutionary context. Reason : Systematics include interrelationship between organisms.

Assertion : Systematics is defined as the science of diversity of organisms in evolutionary context. Reason : Systematics include interrelationship between organisms.

Assertion: Xenon is the only group 18 element which form compounds. Reason: Xenon doesn't form clathrates.

Assertion: All the living organisms have certain basic similarities. Reason: The living organisms have monophyletic ancestory.