Which one of the following types of organisms occupy more than one trophic level in a pond ecosystem.
1. Frog
2. Phytoplankton
3. Fish
4. Zooplankton

Subtopic:  Energy Flow |
 52%

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Identify the possible link "A" in the following food chain :    
Plant → insect - frog → "A" → Eagle
1. Rabbit
2. WoIf
3. Cobra
4. Parrot

Subtopic:  Energy Flow |
 90%

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Identify the likely organisms (a), (b), (c) and (d) in the food web shown below:     

Options

(a)

(b)

(c)

(d)

1.

deer

rabbit

frog

rat

2.

dog

squirrel

bat

deer

3.

rat

dog

tortoise

crow

4.

squirrel

cat

rat

pigeon

Subtopic:  Energy Flow |
 90%

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