Biology
Assertion (A): The term viviparous is normally used for mammals who give birth to young ones.
Reason (R): None of the mammals are oviparous.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Answer
A is True and R is False.
Reason — A is True because animals who give birth to young ones rather than laying egg are known as viviparous animals.
R is False as most of the mammals are viviparous but there are some exception like platypus which is oviparous (lays eggs).
Therefore, A is True and R is False is the correct option.
Related Questions
Assertion (A): Ichthyology and Pisciculture are the same branches of zoology as both of them are related to fishes.
Reason (R): Both the branches are different as they deal with different types of fishes.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Assertion (A): The study of the effects of radioactivity on living things is termed as Nuclear Biology.
Reason (R): It is also known as Radiation Biology as radioactive rays emit from the nucleus of the elements.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Assertion (A): Pathology helps in the detection of diseases of plants and animals.
Reason (R): Pathological tests cover tests on blood, bodily tissues, urine, stools (faeces).
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Assertion (A): Phycology is the study of algae.
Reason (R): Algae are simple, chlorophyll-containing organisms found mainly in aquatic habitats.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.