The process of ecological succession following a forest fire is classified as:

The correct answer is B: Secondary succession. Secondary succession occurs on previously colonized areas where soil remains intact, such as after a fire. Primary succession occurs on bare rock or new land.

A tall plant (genotype unknown) is crossed with a dwarf plant. All offspring are tall. What is the most likely genotype of the tall parent?

The correct answer is A: Homozygous dominant (TT). All offspring being tall when crossed with dwarf (tt) indicates the tall parent is TT. If it were Tt, approximately half offspring would be dwarf.

Comparing Class Mammalia with Class Reptilia, which feature represents a derived character state exclusive to mammals?

The correct answer is B: Diaphragm and mammary glands. While both have amniotic eggs, only mammals possess a diaphragm and mammary glands. Mammals have two occipital condyles, and are endothermic.

The amphibian integument is characterized by all of the following EXCEPT:

The correct answer is C: High degree of keratinization like reptiles. Amphibian skin is moist, permeable, rich in mucous glands, and participates in respiration. Unlike reptiles, it is NOT heavily keratinized, which would reduce water absorption.

A person experiences sustained muscle contraction (tetanus) when a muscle is stimulated at high frequency. This occurs because:

The correct answer is A: Calcium remains elevated in the sarcoplasm. High-frequency stimulation causes calcium to accumulate in the sarcoplasm faster than it can be reuptaken by SR, maintaining sustained actin-myosin interactions.

Home

Home › Subjects › NEET Zoology › Ecology & Environment

NEET Zoology
Ecology & Environment

Zoology questions for NEET UG — Animal Kingdom, Human Physiology, Genetics, Evolution.

54 Q 6 Topics Take Mock Test

Difficulty: All Easy Medium Hard 51–54 of 54

Topics in NEET Zoology

All Animal Kingdom 100 Human Physiology 100 Genetics & Evolution 100 Reproductive Health 100 Ecology & Environment 100 Biotechnology & Applications 40

Q.51 Medium Ecology & Environment

The pyramid of numbers is typically inverted in which ecosystem?

A Grassland

B Desert

C Forest with large trees and parasites

D Aquatic ecosystem

Correct Answer: C. Forest with large trees and parasites

EXPLANATION

In a forest, one large tree (producer) supports many insects and parasites, creating an inverted pyramid of numbers.

Test

Q.52 Medium Ecology & Environment

Which of the following represents a density-dependent factor affecting population growth?

A Earthquake

B Flood

C Disease

D Volcanic eruption

Correct Answer: C. Disease

EXPLANATION

Disease transmission increases with population density, making it a density-dependent factor. Natural disasters are density-independent.

Test

Q.53 Medium Ecology & Environment

What is the carrying capacity of an environment?

A The maximum population size that an environment can sustain indefinitely

B The minimum population needed for survival

C The rate of population growth

D The number of births per year

Correct Answer: A. The maximum population size that an environment can sustain indefinitely

EXPLANATION

Carrying capacity (K) is the maximum population size an environment can support with available resources without degradation.

Test

Q.54 Medium Ecology & Environment

In a food chain, what percentage of energy is typically transferred from one trophic level to the next?

A 50%

B 10%

C 25%

D 75%

Correct Answer: B. 10%

EXPLANATION

The 10% law states that only about 10% of energy is transferred to the next trophic level; the remaining 90% is lost as heat and used in metabolism.

Test

1…4 5 6

All Subjects & Topics

Govt. Exams

Entrance Exams

Teacher Exams

Subjects

Quick Links

NEET Zoology Ecology & Environment

NEET Zoology
Ecology & Environment