Assertion : Moulting or ecdysis occurs only in invertebrates.
Reason : In birds, moulting ususally taken an average time of six weeks.

Assertion: In frog, sinus venosus is present. Reason: In mammals and birds, the remnant of sinus venosus has taken part in the formation of SA node.

Assertion: Physisorption of molecules occures on surface only. Reason: in this process, the bonds of the adsorbed molecules are broken.

Assertion. Macrophages occur only in the connective tissue. Reason. Role of neutrophils is different from that of macrophages.

Assertion: Physisorption of molecules occures on surface only. Reason: in this process, the bonds of the adsorbed molecules are broken.

Assertion: Dark reaction is purely enzymatic reaction. Reason: It occurs only in absence of light.

Assertion: Dark reaction is purely enzymatic reaction. Reason: It occurs only in absence of light.

Assertion: Macrophages occur only in the connective tissue. Reason: Role of neutrophils is different from that of macrophages.

Assertion : Plants manufacture food only during the day time. Reason : During day time, metabolism is high.

Assertion:Evolution is not occurring at present . Reason:Evolution takes a very long time to occur