Biology
Assertion (A): Most animals move from one place to another mainly in search of food or shelter but plants do not move.
Reason (R): Animals are heterotrophs whereas plants are autotrophs. Hence, plants are capable of making their own food and do not move from one place to another.
- 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
Both A and R are true and R is the correct explanation of A.
Reason — A is true as most animals show locomotion (movement from one place to another) in search of food, shelter, and mates. Plants are generally fixed in one place (sessile) and do not move from place to place.
R is true as animals are heterotrophs and depend on other organisms for food, so they need to move in search of it. Plants are autotrophs and prepare their own food, so they generally do not move from one place to another.
Therefore, Both A and R are true and R is the correct explanation of A is the correct option.
Related Questions
Assertion (A): Tapeworm has a long, ribbon-like segmented body that can occur in human intestines as a parasite.
Reason (R): Tapeworm belongs to the phylum annilida (segmented worms). It breathes with the help of moist skin.
- 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): An insect's body is divided into three regions - head, thorax and abdomen.
Reason (R): The division of an insect's body in three parts is very suitable for its locomotion as one pair of legs is attached with each body part with proper gap / space.
- 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): Tortoises and crocodiles belong to the class - amphibia of the phylum chordata.
Reason (R): They can live in water as well as on the land and reproduce successfully.
- 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): Most mammals give birth to young ones and feed them with milk produced in the mother's mammary glands.
Reason (R): Aquatic and flying mammals do not feed their babies with milk as their surroundings make it difficult.
- 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.