Choose the correct match from the following.
i. Co-evolution -Endoparasite and host
ii. Mutualism - Relation of plants and BGA
iii. Sexual deceit - shown by Opuntia plant
iv. Connell's elegant field experiment - Competition

Options

A. i , ii
B. ii , iii
C. iii , iv
D. i, ii , iv

Answer

To solve the question, we need to evaluate each of the given pairs and determine which one is correct.

1. **Co-evolution - Endoparasite and host**:
- Co-evolution refers to the process where two or more species influence each other's evolution. In the case of endoparasites (which live inside the host), they and their hosts evolve in response to each other. This is a correct match.

2. **Mutualism - Relation of plants and BGA**:
- Mutualism is a symbiotic relationship where both species benefit. While blue-green algae (BGA) can have a mutualistic relationship with some plants, the more common example is the relationship between plants and bees, where bees help in pollination. Therefore, this match is incorrect.

3. **Sexual deceit - shown by Opuntia plant**:
- Sexual deceit refers to a strategy where a plant mimics the appearance or scent of a female insect to attract males for pollination. Opuntia (a type of cactus) does not exhibit this behavior; instead, it is typically associated with orchids. Thus, this match is incorrect.

4. **Connell's elegant field experiment - Competition**:
- Connell's experiments studied competition between different species of barnacles in intertidal zones. He demonstrated how one species could outcompete another for space. This is indeed a correct match.

Based on the evaluations:
- The correct matches are:
- i. Co-evolution - Endoparasite and host (Correct)
- ii. Mutualism - Relation of plants and BGA (Incorrect)
- iii. Sexual deceit - shown by Opuntia plant (Incorrect)
- iv. Connell's elegant field experiment - Competition (Correct)

Thus, the correct answer is **option iv**: Connell's elegant field experiment - Competition.