Biotic Agents for Cross Pollination

Q.

An interesting modification of flower shape for insect pollination occurs in some orchids. A male insect mistakes the pattern on the orchid flower for the female species and tries to mate with it there by pollinating the flower. This phenomena is called

1. Pseudoparthenocarpy

2. Pseudocopulation

3. Pseudopollination.

4. Mimicry

Q. Which among the following aquatic plants does not need water as an agent of pollination?

1. Hydrilla
2. Vallisneria
3. Water lily
4. Seagrasses

Q. Match the type of pollination with the pollinating agent.
$\begin{array}{cc}\text{Types of pollination}& \text{Pollinating agent}\\ \text{A. Anemophily}& \text{i. Insect}\\ \text{B. Entomophily}& \text{ii. Water}\\ \text{C. Ornithophily}& \text{iii. Wind}\\ \text{D. Hydrophily}& \text{iv. Birds}\end{array}$

1. A- iii, B-ii, C-i, D-iv
2. A- ii, B-iv, C-iii, D-i
3. A- iii, B-i, C-iv, D-ii
4. A- iv, B-iii, C-ii, D-i

Q.

Which of the following are not biotic pollinators?

1. Air

2. Insects

3. Water

4. Birds

Q.

Biotic pollinators are preferred over abiotic pollinators.

1. True

2. False

Q.

Entomophilous flowers are larger compared to Anemophilous flowers.

1. True.

2. False

Q.

Statement 1: Ornithophilous flowers secrete large quantities of nectar.

Statement 2: Ornithophilous flowers are tubular in shape and mostly of scarlet color.

1. Both statements are true. Statement 2 is the correct explanation of Statement 1.

2. Both statements are true. But Statement 2 is not the correct explanation of Statement 1.

3. Statement 1 is false. Statement 2 is true.

4. Statement 1 is true. Statement 2 is false.

Q. The flowers that have bright coloured petals and tubular flowers are pollinated by:

1. Wind
2. Water
3. Birds
4. Bees

Q.

Match the following
$\begin{array}{cccc}A.& \text{Zoophily}& 1.& \text{Pollination by birds}\\ B.& \text{Ornithophily}& 2.& \text{Pollination by insects}\\ C.& \text{Entomophily}& 3.& \text{Pollination by bats}\\ D.& \text{Chiropterophily}& 4.& \text{Pollination by animals}\end{array}$

1. A – 3, B – 2, C – 1, D – 4

2. A – 1, B – 2, C – 3, D – 4

3. A – 4, B – 1, C – 2, D – 3

4. A – 4, B – 2, C – 1, D – 3

Q.

Among the following, which are forms of biotic pollination?

1. Ornithophily

2. Elephophily

3. Entomophily

4. Anemophily