Question # 1

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

Modern classification (binomial nomenclature) is based on the work of:

Choose an answer

Caesalpino

John Ray

Tournefort

Carolous Linnaeus

According to FAQ more than -------people die of starvation every day:

Choose an answer

10,000

3,000

25,000

50,000

Bactelio-chlorophyll is found in ............ .

Choose an answer

Virus

Bacteria

Both

None

Which of the following blood vessels have oxygenated blood?

Choose an answer

Pulmonary artery

Pulmonary vein

Superior vena cave

Inferior vena cave

Micro filaments are made of:

Choose an answer

Tubulin protein

Lipids

Carbohydrates

Actin protein

Example of Micromolecules is.

Choose an answer

Glucose

Starch

Lipids

Protein

Chlorophyll pigment absorbs maximum light in wavelengths of:

Choose an answer

Green and blue

Green and red

Green only

Red and blue

The green portion is minaly reflected therefore chlorophull appears .............. .

Choose an answer

Green

Blue

White

Black

Which of the followings in not true about the opening and Closing of Stomata?

Choose an answer

Light helps in the opening and closing of stomata

K⁺ ions are responsible for the opening and closing of stomata

The osmosis of water is responsible for the opening and closing of stomata

None for these

In the embryonic and foetal life RBCs are produced in:

Choose an answer

Liver

Ribs

Spleen

Liver and spleen

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

Choose an answer

Leaves could not get 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

Valves to prevent the backflow of blood are found in the:

Choose an answer

Arteries

Veins

Capillaries

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