Question # 1

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

Choose an answer

Established

Extinct

Threatened

Endangered

Where are the villi found?

Choose an answer

Esophagus

Stomach

Small intestine

large intestine

Doforestation by uncontrolled cutting of trees means danger of _____________

Choose an answer

Green House effect

Soil erosion

Both a& b

None

............... is a great stabilizer of body temperature.

Choose an answer

Carbon

Nitrogen

Water

None

Eukaryotic Ribosome is .............. .

Choose an answer

20s

30s

80s

70s

Classification means the grouping of organisms on the basis of:

Choose an answer

How they feed

The features they have in common

How they respire

How they can survive

................. is called power house of cell.

Choose an answer

Mitochondria

Cell wall

Nucleus

Vaculoe

Form which bonds of ATP molecule, energy is taken?

Choose an answer

P-P bonds

C-H bonds

C-N bonds

C-O bonds

Cell theory was proposed by:

Choose an answer

Theodor Sachwann

Mathias Schleiden

Both a & b

None

The hepatic portal vein carries blood from the _______to the_______.

Choose an answer

Small intestines, liver

Small Intestines, heart

Liver, heart

Small intestines, colon

The wavelike movement of muscle that pushes food through digestive system is called:

Choose an answer

Churning

Emulsification

Absorption

Peristalsis

A hypothesis must be testable to be scientifically valid. Being testable means that:

Choose an answer

Some observations could prove that hypothesis is incorect

Only a controlled experiment can indicate whether the hypothesis is correct or incorrect

The hypothesis is proven wrong

The opposite of hypothesis is tested and proven worng

Which of the following distinguishes meiosis from mitosis?

Choose an answer

The chromosome number is reduced

Chromosomes undergo crossing over

The daughter cells are genetically different from the parent cell.

All of the above

More Classes

Other Links

Biology 9th Class English Medium 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