What is the correct chronological order of events during the menstrual cycle?

The correct answer is A: Menstruation → Proliferative phase → Ovulation → Secretory phase. The menstrual cycle begins with menstruation (days 1-5), followed by proliferative phase (days 5-14), ovulation (day 14), and secretory/luteal phase (days 15-28).

Which statement about mutations is correct?

The correct answer is C: Mutations provide raw material for evolution but are not directed. Mutations are random, non-directed changes in DNA that provide genetic variation for natural selection to act upon. They're not inherently harmful or beneficial.

In the visual pathway, the structure responsible for focusing light onto the retina is:

The correct answer is C: Lens. The lens adjusts its shape (accommodation) through ciliary muscle contraction to focus light precisely on the retina for clear vision.

Which vitamin supplementation is crucial in the periconceptional period to reduce neural tube defects?

The correct answer is B: Folic acid (400-5000 mcg daily). Folic acid supplementation (400 mcg minimum, higher for high-risk women) during the periconceptional period reduces neural tube defects by 50-70%.

The Western Ghats of India represent which type of biodiversity hotspot characteristic?

The correct answer is B: High endemism with high species diversity and significant habitat loss. The Western Ghats qualify as a biodiversity hotspot due to their exceptional species richness, with over 50% endemic species and significant ongoing habitat destruction from human activities.

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NEET Zoology

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

153 Q 6 Topics Take Mock Test

Difficulty: All Easy Medium Hard 151–153 of 153

Topics in NEET Zoology

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

Q.151 Easy Animal Kingdom

Which phylum contains animals with a true coelom and closed circulatory system?

A Platyhelminthes

B Annelida

C Nematoda

D Porifera

Correct Answer: B. Annelida

EXPLANATION

Annelida (earthworms, leeches) are characterized by a true coelom and closed circulatory system with blood vessels.

Test

Q.152 Easy Animal Kingdom

Cnidarians are characterized by the presence of:

A Nematocysts and radial symmetry

B Tube feet and bilateral symmetry

C Jointed legs and exoskeleton

D Notochord and dorsal nerve cord

Correct Answer: A. Nematocysts and radial symmetry

EXPLANATION

Cnidarians (jellyfish, corals, sea anemones) possess nematocysts (stinging cells) and exhibit radial symmetry, which is their defining characteristic.

Test

Q.153 Easy Animal Kingdom

Which of the following is the correct hierarchical classification of animals?

A Kingdom → Phylum → Class → Order → Family → Genus → Species

B Kingdom → Class → Phylum → Order → Family → Genus → Species

C Kingdom → Phylum → Order → Class → Family → Genus → Species

D Phylum → Kingdom → Class → Order → Family → Genus → Species

Correct Answer: A. Kingdom → Phylum → Class → Order → Family → Genus → Species

EXPLANATION

The correct taxonomic hierarchy from largest to smallest grouping is Kingdom, Phylum, Class, Order, Family, Genus, and Species (KPCOFGS).

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