BIOLOGY TEST BY DR . JAJI

Gametes in animals are produced by which of the following?

• meiosis

• fission

• mitosis

• all of these

These animals show radial symmetry.

• Cnidarian

• Annelids

• Round worms

• Chordates

Assymetrical body is a feature of phylum ___________ .

• Arthropoda

• Cnidaria

• Porifera

• Annelida

Magnifying power of electron microscope as compared to eye is?

• 500 X

• 500 000 X

• 100 000 X

• 250 000 X

Which of the light is mainly absorbed by the plants?

• Both A and B

• Green

• Red

• Orange

What structure marks the separation between two sarcomeres?

• H zone

• I band

• A band

• Z line

Which of these transports sperm from the testis to the penis?

• gamete

• urethra

• scrotum

• sperm duct

Covalent modification means change in?

• pH of amino acids

• bonding on amino acids

• physical properties

• chemical properties

Breathing rate in humans at rest is:

• 10 to 15 times per minute

• 10 to 20 times per minute

• 15 to 20 times per minute

• 80 to 120 times per minute

Icosahedral Viruses have how many faces?

• 30

• 20

• 40

• 10