Which of the following is incorrect about Cyanobacteria?

1. They are photoautotrophs.

2. They lack heterocysts.

3. They often form blooms in polluted water bodies.

4. They have chlorophyll similar to green plants.

Given below is the diagram of a bacteriophage. In which one of the options, all the four parts A, B, C and D are correct?

Animals differ from plants in

1. Being multicellular

2. Having cell wall

3. Being heterotrophic

4. Being eukaryotic

Choose the correct features regarding the most common asexual spores of sac fungi.

a. Haploid

b. Exogenous

c. Thick walled

d. Produced during unfavorable conditions

e. Grow in basipetal manner

1. a, c and d

2. a, b and c

3. b, c, d and e

4. All except c and d

Red tides are due to the rapid multiplication of

1. Cyanobacteria

2. Chlamydomonas

3. Gonyaulax

4. Diatoms

Which of the following is not true for amoeboid protozoan?

1. Pseudopodia helps in feeding

2. Silica shells present in marine form

3. Contractile vacuole

4. Flagella helps in locomotion

Which of the following is correct about viroids?

1. They have free RNA without protein coat.

2. They have DNA with protein coat.

3. They have free DNA without protein coat.

4. They have RNA with protein coat.

Members of myxomycetes (slime moulds) move from one place to other by:

(1) Ciliary movements

(2) Cyclosis

(3) Amoeboid movement

(4) Rotation

Consider the following statements:

I. Insectivorous plants are plants that derive some or most of their nutrients (but not energy)from trapping and consuming insects and other arthropods.

II. Insectivorous plants appear adapted to grow in places where the soil is thin or poor in nutrients, especially nitrogen, such as acidic bogs and rock outcroppings.

The correct statements are:

1. I and II

2. I only

3. II only

4. Both I and II are incorrect

Which of the following is not a saprophytic plant?

1. Monotrapa

2. Neottia

3. Santalum

4. Agaricus