+91-8527521718
Signup | Login
  • 1(current)
Q. No.
Ecologists suggest that life history traits in organisms are influenced by:
1. Only abiotic factors like temperature and water.
2. Only biotic factors like food and predators.
3. The age of the organisms in the population.
4. Both abiotic and biotic components of the habitat.
Subtopic:  Life History Variations |
 94%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
Consider the two statements:
I: Pacific salmon fishes breed only once in their lifetime.
II: Most birds and mammals breed many times during their lifetime.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic:  Life History Variations |
 94%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
How have life history traits of different species evolved according to ecologists?
1. They have evolved randomly, without any influence from the environment.
2. They are shaped by abiotic and biotic factors in the habitat, determining reproductive strategies and survival mechanisms.
3. They are identical across all species, as evolution follows a single path.
4. They only evolve in response to predation pressure, not other ecological constraints.
Subtopic:  Life History Variations |
 94%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
advertisementadvertisement
Consider the two statements:
I: Pelagic fishes produce a large number of small-sized offspring.
II: Most birds and mammals produce a small number of large-sized offspring.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic:  Life History Variations |
 92%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
In response to selection pressures, organisms tend to:
1. Avoid reproduction altogether.
2. Maintain constant reproductive strategies regardless of the environment.
3. Evolve reproductive strategies that maximize their survival and fitness.
4. Reproduce only when there are no competitors in the habitat.
Subtopic:  Life History Variations |
 91%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
Some organisms have big-bang reproduction – they breed only once in their lifetime, produce many progeny and usually die after the event. An example of such organism may be:
1. Most perennial plants 2. Birds
3. Pacific salmon 4. Humans
Subtopic:  Life History Variations |
 91%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
advertisementadvertisement

Choose a correct statement regarding life history variations

1. Mammals breed only once in life time
2. Some organisms like Bambusa breeds many times in life
3. Large number of small sized individuals are produced by Oyesters
4. Large number of small sized individuals are produced by Mammals
Subtopic:  Life History Variations |
 90%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.

Mark the incorrect match

1. Oysters, pelagic fishes - Small-sized offspring 
2. Pacific salmon fish, bamboo - Breed many times in life time
3. Birds, mammals - Large-sized offspring
4. Birds, mammals - Breed many times in life time 
Subtopic:  Life History Variations |
 89%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Ability to maintain a constant internal environment enhances the overall ‘fitness’ of the species.
Reason (R): A constant internal environment permits all biochemical reactions and physiological functions to proceed with maximal efficiency.
 In the light of the above statements, choose the most appropriate answer from the options given below :
1. (A) is true but (R) is false.
2. (A) is false but (R) is true.
3. Both (A) and (R) are true and (R) explains (A).
4. Both (A) and (R) are true but (R) does not explain (A).
Subtopic:  Life History Variations |
 88%
Level 1: 80%+
Hints
advertisementadvertisement

Mammals:

1. breed many times during their lifetime and produce a small number of large-sized offspring
2. breed many times during their lifetime and produce a large number of small-sized offspring
3. breed many times during their lifetime and produce a small number of small-sized offspring
4. breed only once during their lifetime and produce a small number of large-sized offspring

Subtopic:  Life History Variations |
 82%
Level 1: 80%+
Hints
  • 1(current)
Q. No.

NEET Information

courses

Company

Botany Questions

Chemistry Questions

Physics Questions

Zoology Questions

© 2026 GoodEd Technologies Pvt. Ltd.