Question # 1

The only source of energy for all ecosystems of the world is.

Choose an answer

Sun

Moon

Plants

Ocean

Organisms that make their own food with help of sunlight, CO and H₂O are called.

Choose an answer

Consumers

Producers

Decomposers

Predators

Conversion of urea and uric acid into Ammonia is called.

Choose an answer

Assimilation

Nitrogen fixation

Ammonification

Biological fixation

In ecosystem the role of decomposers is played by

Choose an answer

animals

plants

bacteria and fungi

algae

All Ecosystem of the world join and makes.

Choose an answer

Biosphere

Heterosphere

Geosphere

Hydrosphere

The current level of urbanization in Pakistan is about_____ which is not high by global standards.

Choose an answer

23%

32%

36%

39%

_________ atom is the principal building block of many kind of biomolecules.

Choose an answer

Oxygen

Carbon

Hydrogen

Nitrogen

The basic tropic level of all food chain is.

Choose an answer

Producers

Consumers

Decomposers

Reducers

Which of the following is the abiotic part of ecosystems?

Choose an answer

Grass

Goat

Lion

Soil

An example of carnivores plant is.

Choose an answer

Mosses

Ferns

Rose plant

Sundew

A group of organisms of same species living in a particular area is called.

Choose an answer

Population

Coummunity

Abiotic factor

Ecology

Abiotic component of ecosystem is:

Choose an answer

Producers

Herbivores

Camivore

Oxygen

Primary source of energy for all ecosystem is.

Choose an answer

Electricity

Sun

Fire

Nutrients

More Classes

Other Links

Biology 10th Class English Medium Chapter 16 Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer