Question

the figure shows the different types of food chains found in nature.
a- identify the type of food chains marked as a, b, C in figure as aquatic forest or grassland.
b- which of the food chain in the figure is a figure step food chain? 1.a 2.b 3.c 4.none of these
c- name the three main trophic levels on which the above food chains are based?
d- what does each step in a food chain above represents? name the three. ​

Answer 1

Answer:

a is forest b is aquatic and c. is grassland

Answer 2

FOOD CHAIN

Step by step explanation:

a. In the given food chain: a) is grassland b) is aquatic c) is forest

• In grassland food chain the energy flows from grass to herbivorous animal to carnivorous animal
• In aquatic food chain the energy flows from aquatic plants to aquatic animals.
• In forest food chain the energy flows from primary level to different levels.

b. None of the above is a figure step food chain.

• In figure step food chain the energy is transformed from primary consumers to secondary consumer to tertiary consumer  

c. The above food chain is based on level 2, level 3 and level 4

• In level 1: plants make their own food and act as producers.
• in level 2: Herbivorous eats those plants and come under primary consumer.
• in level 3: Carnivorous eats those herbivorous animals
• In level 4: In this one carnivorous animal eats another carnivorous animal

d. Each steps in a food chain represents different trophic levels. The three trophic levels are primary, secondary and tertiary.