Interactions of Ecosystem

What is a link in a food chain?

• An organism that occupies a specific place in the food chain and feeds on other organisms, being in turn consumed by others.

• A link in a television chain

• A link in a bicycle chain

• A link in a jewelry chain

Answer explanation

A link in a food chain is an organism that occupies a specific place in the food chain, feeds on other organisms, and is in turn consumed by others.

What is the habitat of a polar bear?

• Desert

• Jungle

• Mountain

• Arctic

Answer explanation

The correct habitat of a polar bear is the Arctic region, where they are adapted to survive in cold temperatures and icy conditions.

What is a predator-prey relationship?

• It is a mutualistic symbiosis between two species

• It is a relationship in which a prey organism hunts the predator

• It is a biological interaction in which a predator organism hunts, kills, and feeds on another prey organism.

• It is an interaction in which both organisms benefit without harming each other

Answer explanation

The correct choice is a biological interaction in which a predator organism hunts, kills, and feeds on another prey organism.

What is the ability of an animal to adapt to its environment called?

• adaptation

• transformation

• ability

• modification

Answer explanation

The ability of an animal to adapt to its environment is called adaptation, making it the correct choice among the options provided.

Why is the interdependence between species in an ecosystem important?

• The interdependence between species in an ecosystem does not affect the stability of the system

• The interdependence between species in an ecosystem causes imbalance

• The interdependence between species in an ecosystem is irrelevant

• The interdependence between species in an ecosystem is important for promoting the stability and balance of the system.

Answer explanation

The interdependence between species in an ecosystem is important for promoting the stability and balance of the system.

Which animal is at the end of the food chain?

• Carnivore

• Top predator

• Grass

• Omnivore

Answer explanation

The correct choice is 'Top predator' because it is the animal at the end of the food chain, feeding on other animals and not being preyed upon by any other species.

Where do fish live in an aquatic ecosystem?

• On land

• In the air

• In the mountains

• In the water

Answer explanation

Fish live in the water in an aquatic ecosystem, not on land, in the air, or in the mountains.

What type of adaptation do chameleons have to camouflage?

• Change color

• Swim fast

• Grow in size

• Fly high

Answer explanation

Chameleons have the adaptation to change color for camouflage, allowing them to blend in with their surroundings.

What would happen if a key species disappeared from an ecosystem?

• Other species would quickly adapt and take its place in the food chain.

• It would cause an imbalance in the food chain and affect other species dependent on it.

• It would have no impact on the ecosystem.

• The population of other species would increase and the conditions of the ecosystem would improve.

Answer explanation

If a key species disappeared from an ecosystem, it would cause an imbalance in the food chain and affect other species dependent on it.

How do plants benefit from their relationship with bees?

• Asexual reproduction

• Pollination

• Water absorption

• Photosynthesis

Answer explanation

Plants benefit from their relationship with bees through pollination, which helps in the transfer of pollen between flowers, leading to fertilization and the production of seeds and fruits.