Practice MCQ Questions and answers on Biology-GK

11

Such plants which are adapted to survival under conditions a limited supply of water in its habitat are known as

A) Hydrophytes B) Saprophytes C) Xerophytes D) Pteridophytes

Discuss

Answer & Solution

Answer: Option C

Solution:

A xerophyte is a species of plant that has adaptations to survive in an environment with little liquid water, such as a desert or an ice- or snow-covered region in the Alps or the Arctic. Popular examples of xerophytes are cacti, pineapple and some Gymnosperm plants.

12

Azolla is a

A) Algae B) Fungi C) Bryophyta D) Aqueous fern

Discuss

Answer & Solution

Answer: Option D

Solution:

Azolla (mosquito fern, duckweed fern, fairy moss, water fern) is a genus of seven species of aquatic ferns in the family Salviniaceae. They are extremely reduced in form and specialized, looking nothing like other typical ferns but more resembling duckweed or some mosses.

13

Bamboo is classified as

A) Tree B) Grass C) Shrub D) Herb

Discuss

Answer & Solution

Answer: Option B

Solution:

Bamboo is classified as grass.

14

Bios means

A) Study B) Life C) Fact D) True

Discuss

Answer & Solution

Answer: Option B

Solution:

Bios means life.

15

In mainly which phylum the body of an organisms is usually divided in there regions called head, thorax and abdomen?

A) Annelida B) Chordata C) Arthropods D) Echinodermata

Discuss

Answer & Solution

Answer: Option C

Solution:

Class Insecta is the largest group of arthropods and includes mainly terrestrial arthropods with a distinct head, thorax and abdomen, one pair of antennae, three pairs of legs, jaws and up to two pairs of wings. This group includes most of the familiar creatures affectionately known as "bugs".

16

All insects have how many parts of legs?

A) 2 B) 3 C) 4 D) 6

Discuss

Answer & Solution

Answer: Option B

Solution:

All insects have 3 parts of a leg.

17

All living things except bacteria and blue green algae are termed as

A) Prokayotes B) Lysosmes C) Eukaryotes D) None of the above

Discuss

Answer & Solution

Answer: Option C

Solution:

All living things except bacteria and blue green algae are termed as eukaryotes.

18

There are how many species of fungi?

A) 80 species B) 800 species C) 8,000 species D) 80,000 species

Discuss

Answer & Solution

Answer: Option D

Solution:

There are 80,000 species of fungi.

19

Which of the following is true of annelids?

A) They have an open circulatory system B) They have a nerve net C) They perform gas exchange across their skin D) They have pseudocoeloms

Discuss

Answer & Solution

Answer: Option C

Solution:

Annelids perform gas exchange across their skin.

20

Which of the following has the largest number of chromosomes?

A) Human beings B) Pteridophytes C) Elephants D) Bryophytes

Discuss

Answer & Solution

Answer: Option B

Solution:

Pteridophytes has the largest number of chromosomes.