Assertion: Bats and whales are classified as mammals.
Reason: Bats and whales have a four-chambered heart.

Q. Given below is an assertion and reason.
A. Both assertion and reason are true and reason is the correct explanation
B. Both assertion and reason are true but reason is not the correct explanation
C. Assertion is true, but reason is wrong
D. Both assertion and reason are wrong

Assertion: Euglena has chlorophyll, a feature similar to plants.
Reason: Euglena cannot be classified on the basis of two kingdom classification.

Q. Assertion: Bats and whales are classified as mammals.
Reason: Bats and whales have four chambered heart.

Q. Assertion : Aquatic mammals like whales and seals are said to be ureotelic animals
Reason : It is because of the fact that nitrogenous waste product is urea

Q. Given below are assertion and reason. Point out if both are true with reason being correct explanation (A), both true but reason is not correct explanation (B), assertion true but reason wrong (C), and both wrong (D),
Assertion. Vascular cambium is considered as lateral meristem.
Reason. It gives rise to lateral shoots.

Q. Given below is assertion and reason.
A. Both assertion and reason are true with reason being the correct explanation
B. Both assertion and reason are true but reason not correct explanation
C. Assertion is true, but reason is wrong
D. Both assertion and reason are wrong

Assertion: Shigella species, E.coli and Salmonella species are all known to be the causes of diarrhoeal diseases.
Reason: Shigella, E.coli and Salmonella are intestinal parasites.