Question # 1

Plants are classified on the basis of _____________

Choose an answer

Environmental conditions

Anatomy

Colour of flowers

All of the above

The study of fossiles is called.

Choose an answer

Immunology

Pharmacology

Paleontology

Parasitology

Many bacteria in colon produce vitamin ____________ necessary for coagulation of blood.

Choose an answer

A

K

C

D

Stomata close when guard cells:

Choose an answer

Loss water

Gain chloride ions

Become turgid

Grain potassium ions

What is the primary nutrient that provides quick useable energy for the body?

Choose an answer

Carbohydrates

Protiens

Lipids

Nucleic acids

Enatomology is the study of.

Choose an answer

Tissue

Organelles

Insects

Bacteria

Loss of species makes ecosystem less ____________ and less productive.

Choose an answer

Beneficial

Resilient

Interactive

None of these

................. is called energy currency of cell.

Choose an answer

ADP

ATP

AMP

All

When a plant was kept in darkness for many days, its leaves turnes yellow. Why?

Choose an answer

Leaves could not yet oxygen and so there was no photosynthesis

Leaves could not get light and so there was no respiration

Leaves could not get oxygen and so there was no respiration

Leaves could not get light and so there was no photosynthesis

When the last member of a particular species dies, the species is said to be______.

Choose an answer

Established

Extinct

Threatened

Endangered

When we study the feeding relation emong animals of diffrent species of a forest.at which level of organization we are.

Choose an answer

Individual

Population

Community

Biosphere

The gas produced in mesophyll cells as by product during day time is called.

Choose an answer

Oxygen

Carbon dioxide

Nitrogen

Chlorine

How many carciogens are present in cigarette smoke?

Choose an answer

40

50

60

70

The pathway followed by the nerve impulses for producing a reflex action is called.

Choose an answer

Reflex action

Reflex arc

Neuron

Spinal card

THe alternate form of a gene are called:

Choose an answer

Genotype

Phenotype

Alleles

Replication

The rise of the bread is due to;

Choose an answer

carbon dioxide

ethanol

acetaldehyde

pyruvic acid

The factor of an ecosystem is:

Choose an answer

light

algae

bacteria

producers

For gaseous exchange the leaf and young stems have in their epidermis:

Choose an answer

Stomata

Lenticels

Companion cell

Guard cells

Which of the following air pollutant react with water in atmosphere producing acid rain?

Choose an answer

Hydrocarbons fluorine

Flyash, soot

chlorine , smoke

Sulphur dioxide, Nitrogen oxide.

An examples of carnivore plant is.

Choose an answer

Rose plant

Mosses

Pitcher plant

Ferns

The hard outer layer of a bone is called;

Choose an answer

Bone marrow

Hyoid bone

Spongy bone

Compact bone

Find the INCORRECT statement:

Choose an answer

Bone is where most blood cells are made.

Bones serves as a storehouse for various minerals.

Bones is a dry and non-living supporting structure.

Bone protects and supports the body and its organs.

More Classes

Other Links

Biology Life Science Test Easy Mode 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

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