Transfer of Solar Energy

Q.

What are the heterotrophic bacteria?

Q.

Which of the following is an artificial ecosystem?

1. (a) Pond

2. (b) Crop field

3. (c) Lake

4. (d) Forest

Q.

Which of the following chemicals supply energy to perform life functions?

1. ASP

2. ANP

3. ATP

4. ALB

Q. Assertion (A): The number of trophic levels in the grazing food chain is restricted.

Reason (R): Only 10 percent of the energy is transferred to each trophic level from the lower trophic level.

1. Both A and R are correct and R is not the explanation of A.
2. Both A and R are correct and R is the correct explanation of A.
3. A is correct and R is incorrect.
4. Both A and R are incorrect.

Q. The correct sequence of the food chain from producer to consumer is:

1. Grass
2. Insect
3. Bird
4. Snake

Q.

Name an essential element absorbed by plant from air.

Q. Match the organism to its trophic level in the food chain.

1. 
2. Third
3. 
4. First
5. 
6. Second

Q.

How many organisms in the given list are omnivores?

Rabbit, Sparrow, Hydra, Crow, Man, Fox, Cockroach, Bobcat

1. ​​​​​​Five

2. Four

3. ​​​​​​Six

4. ​​​​​​Three

Q.

Which one of the following is a correct food chain?

1. Grass → grasshopper → frog

2. Grasshopper → grass → snake → frog → eagle

3. Eagle → snake → grasshopper → grass → frog

4. frog → snake → grasshopper → grass