Coevolution - Unsolved Practice Set

Q1. Coevolution refers to a process in which:

1. Only one species evolves in response to another, with no reciprocal change
2. Two closely interacting species reciprocally influence each other's evolution over time
3. A single species evolves independently of any other species
4. No evolutionary change occurs in either species

Q2. The close evolutionary relationship between Yucca plants and the Yucca moth, in which each species depends on and has shaped the evolution of the other, is a classic example of:

1. Predation without coevolution
2. Coevolution between a plant and its specific pollinator
3. Simple commensalism with no evolutionary link
4. Amensalism

Q3. A "predator-prey arms race," where predators evolve improved hunting adaptations while prey simultaneously evolve improved defences, is an example of:

1. A one-sided evolutionary process affecting only the predator
2. Coevolution, where both species reciprocally influence each other's evolutionary adaptations
3. A process with no ecological consequences
4. A purely random, unrelated evolutionary change

Q4. Coevolution between a parasite and its host typically involves:

1. The parasite evolving improved ways to exploit the host, while the host evolves improved defences against the parasite
2. Only the host evolving, with no evolutionary response from the parasite
3. Neither species evolving over time
4. The complete elimination of one species with no evolutionary interaction

Q5. Coevolution is considered ecologically significant mainly because it:

1. Prevents any further evolutionary change in either species
2. Helps shape and maintain the diversity and complexity of ecological relationships between interacting species
3. Has no measurable effect on biodiversity
4. Only occurs in laboratory settings, never in nature