Concept of Trophic Levels

Q. Trophic levels are formed by

1. Only plants
2. Only animals
3. Only carnivores
4. Organisms linked in the food chain

Q.

Describe the biological components of an ecosystem.

Q.

The first order consumers are called:

1. Autotrophs

2. Producers

3. Chemotrophs

4. Herbivores

Q. The dominant second trophic level in a lake ecosystem is:

1. Zooplanktons
2. Fishes
3. Phytoplanktons
4. Frogs

Q.

These belong to the category of primary consumers:

1. Snakes and Frogs

2. Insects and cattle

3. Eagle and snakes

4. Lion and cheetah

Q.

Nepenthes belongs to the category of

1. primary consumer

2. producer

3. secondary consumer

4. both b and c

Q. Mr X is eating curd/yoghurt. For this food intake in a food chain, which of the following trophic level will he occupy?

1. First trophic level
2. Second trophic level
3. Third trophic level
4. Fourth trophic level

Q. With respect to the given image microscopic animals in the ecosystem could be described as the -

1. Producers
2. Primary consumer
3. Secondary consumer
4. Decomposer

Q. Which of the following is the trophic level of an orchid growing on a mango tree?

1. First
2. Tertiary/ Third
3. Second
4. Fourth

Q.

In an aquatic ecosystem, the trophic level equivalent to cows in grasslands is:

1. Nekton

2. Shark

3. Phytoplankton

4. Zooplankton

Q. Which of the following organisms may occupy more than one trophic level in the same ecosystem at the same time?

1. Sparrow
2. Lion
3. Goat
4. Neem tree

Q. With respect to the given image, who is/are the tertiary consumers in this ecosystem?

1. Crab, dogfish, dogwhelk
2. Barnacle, crab, dogfish
3. Crab, dogfish, periwinkle
4. Barnacle, crab, periwinkle

Q.

How many organisms in the given list are omnivores?

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

1. ​​​​​​Three

2. ​​​​​​Six

3. ​​​​​​Five

4. Four

Q. Trophic levels are formed by

1. Only plants
2. Only animals
3. Only carnivores
4. Organisms linked in the food chain

Q.

How many organisms in the given list are omnivores?

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

1. ​​​​​​Three

2. ​​​​​​Six

3. ​​​​​​Five

4. Four