BIO QUIZ 5

All the available places on earth which supports life constitute the

• lithosphere

• atmosphere

• biosphere

• hydrosphere

Answer explanation

The correct choice is 'biosphere' because it refers to all the places on earth that support life.

Which of the following make up an ecosystem?

• decomposers, animals and non-living factors

• living and non-living factors

• plant and non-living factors

• plants, decomposers and non-living factors

Answer explanation

Living and non-living factors make up an ecosystem, including both biological components like plants and animals, as well as non-living elements like soil and water.

The difference between a community and a population is

• a community is made of organisms of the same species while population is made up of organisms of different species

• a community is made up of population of living organisms while a population is made up of organisms of the same species

• an ecological niche does not exist but it does in a population

• a community attracts competition but a population does not

Answer explanation

A community is a group of populations of different species, while a population consists of organisms of the same species.

The area around the earth where life activities go on is referred to as

• biosphere

• lithosphere

• habitat

• ecosystem

Answer explanation

The area around the earth where life activities go on is referred to as biosphere, making it the correct choice among the options provided.

A stable self-sustaining environment produced by an interaction between the biotic and abiotic components is best described as

• a niche

• a community

• an ecosystem

• a habitat

Answer explanation

An ecosystem is a stable self-sustaining environment formed by interactions between biotic and abiotic components.

The entire habits and habitat of an organism can be described as its

• ecological community

• ecological niche

• habitat factor

• biotic factor

Answer explanation

The entire habits and habitat of an organism can be described as its ecological niche.

In ecology, a community refers to

• a number of individuals of a given species

• group of different organisms living in a habitat

• existing species in an abandoned farmland

• the dominant species in a habitat

Answer explanation

In ecology, a community refers to a group of different organisms living in a habitat, which interact with each other and their environment.

The term ecosystem refers to

• different groups of green plants in a habitat

• living members of a habitat

• living organisms interacting with the physical environment

• members of physical plants living in a habitat.

Answer explanation

The term ecosystem refers to living organisms interacting with the physical environment.

A group of several populations that interact and share a habitat form

• a species

• a community

• an ecotype

• a tribe

Answer explanation

A group of several populations that interact and share a habitat form a community.

The highest level of ecological organization is the

• ecosystem

• niche

• biosphere

• population

Answer explanation

The highest level of ecological organization is the biosphere.