Ecosystems & Interactions

The ecosystem component made up of living things is called the ... component.

An organism that can make its own food through photosynthesis is called a ...

An example of a producer in a rice field ecosystem is ...

Organisms that break down the remains of dead living things are called ...

The sequence of eating and being eaten that shows the flow of energy is called a ...

Animals that eat plants are called ...

In the food chain rice → rat → snake → eagle, energy flows from ...

The relationship between a butterfly sipping nectar and a flower that is helped in pollination is ... symbiosis.

A louse living on a human head and sucking blood is an example of ... symbiosis.

An orchid attached to a tree trunk without harming the tree is an example of ... symbiosis.

A collection of several interconnected food chains is called a ...

If the snake population in a rice field drops because many are caught by humans, the most likely event is ...

A relationship between two organisms in which one benefits while the other is neither helped nor harmed is called ...

Which of the following is an abiotic factor in an ecosystem?

Consider the food chain: rice → rat → snake → eagle. If all snakes are hunted by humans, the likely effect on the ecosystem is ...

In a food pyramid, the largest amount of available energy is at the level of ...

The relationships between bees and flowers, and between lice and humans, are respectively ...

Excessive use of pesticides in a rice field can result in ...

Look at these relationships! (1) Remora fish with a shark. (2) Rhizobium bacteria with legume roots. (3) Mistletoe with a host tree. The relationship that is mutualism is ...

The balance of an ecosystem can be disturbed if ...