NEETshala
Log in Get Started Free

NEET Practice Questions (MCQs) with Answers & Solutions

Practice free NEET NEET multiple-choice questions online with instant answers and detailed explanations. No login required.

All Physics Chemistry Botany Zoology
Register free to filter questions
● ● ● ● ●

What is the temperature at which archeobacteria can survive ?

You've reached today's free limit of 20 questions. Log in to keep practising for free.
Explanation

Archeobacteria, also known as archaea, are extremophiles that can survive in extreme conditions, including high temperatures. They thrive in environments such as hot springs and hydrothermal vents, where temperatures can reach as high as 110 °C. Therefore, the correct answer is 'All of these' as archeobacteria can survive at 90 °C, 100 °C, and 110 °C.

● ● ● ● ●

Hygroscopic skin is seen in.....

You've reached today's free limit of 20 questions. Log in to keep practising for free.
● ● ● ● ●

What is true for marine animals ?

You've reached today's free limit of 20 questions. Log in to keep practising for free.
Explanation

Marine animals live in a hypertonic environment where the salinity of the seawater is higher than that of their body fluids. To counteract the water loss due to exosmosis (movement of water out of their bodies), they drink sea water. This helps them maintain their hydration and osmotic balance.

● ● ● ● ●

In order to find out VITAL INDEX in Rampur Village, following information was gathered Death Rate = 1/x Birth Rate = z Average population = 1/y . What is the Vital Index ?

You've reached today's free limit of 20 questions. Log in to keep practising for free.
● ● ● ● ●

Match the column I with column II Column I (1) Astacus

(2) Marine turtle.

(3) Spiny lizard

(4) Uromatrix

Column II (p) Hydrophiic skin

(q) green gland

(r) water storage in intestine

(s) salt glands

You've reached today's free limit of 20 questions. Log in to keep practising for free.
Explanation

Matching the organisms to their respective characteristics:

  1. Astacus (a type of crayfish) is associated with the green gland (q).
  2. Marine turtle has salt glands (s) to excrete excess salt.
  3. Spiny lizard has hydrophilic skin (p) which helps in water absorption.
  4. Uromatrix (a type of lizard) stores water in its intestine (r). Thus, the correct match is: \[(1-q), (2-s), (3-p), (4-r)\]
● ● ● ● ●

In the section of lichen whichlayer is seen just below “ upper cortex”

You've reached today's free limit of 20 questions. Log in to keep practising for free.
● ● ● ● ●

What is true for the given statement ? Statement X : Most of the animals and almost all the plants cannot keep up their internal enviornment constant Statement Y: process of osmoregulation in plants is an example of this

You've reached today's free limit of 20 questions. Log in to keep practising for free.
● ● ● ● ●

From the given option find out the correct pair ?

You've reached today's free limit of 20 questions. Log in to keep practising for free.
● ● ● ● ●

Give correct option for the given true and false statements

(i) Some insects, birds and mammals living in warm and dry climate have more darker black pigments than the races of same species living in cold and humid climate.

(ii) Tempreture variation is much lesser in aquatic habitat compared to terrestrial habitat

(iii) In deep fresh water lakes, there is gradual incrase in tempreture from surface to the bottem

(iv) In an aquatic habitat production increases with insing depth (T =True, F = False)

You've reached today's free limit of 20 questions. Log in to keep practising for free.
● ● ● ● ●

Which ofthe following is not included as the climax community of general process of succession ?

You've reached today's free limit of 20 questions. Log in to keep practising for free.
Explanation

Phytoplanktones are not considered a climax community in the general process of succession. The climax community is typically more stable and resilient, often represented by forests, grasslands, or other complex ecosystems. Phytoplanktons are usually part of earlier successional stages in aquatic environments.

Ready to ace NEET?

Free access · No credit card required

Browse All Questions Create Free Account

Frequently Asked Questions

Yes. You can attempt every NEET question on this page for free without logging in, and check the correct answer with a detailed explanation instantly.

No account is required to attempt questions and view answers. A free account adds bookmarks, personal notes, and progress tracking.

The bank mixes NEET previous year questions (PYQs) with practice questions, each tagged with its exam appearances where applicable.