Buoyancy in a bony fish is maintained with the help of

(1) streamlined body

(2) paired fins

(3) swim bladder

(4) all the above

Subtopic:  Comparative study of Cartilagenous & Bony Fishes |
 62%
From NCERT
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh

In which of the following animals the adults have pentamerous radial symmetry while their larvae are bilaterally symmetrical?

(1) Arthropods

(2) Molluscs

(3) Echinoderms

(4) Annelids

Subtopic:  Phylum Echinodermata |
 93%
From NCERT
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Botryoidal tissue is found in

(1) hirudina

(2) polychaeta

(3) oligochaeta

(4) all of these.

Subtopic:  Phylum Annelida |
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints

Which of the following is an egg laying mammal?

(1) Kangaroo

(2) Platypus

(3) Penguin

(4) Whale

 

Subtopic:  Study of Aves & Mammals |
 90%
From NCERT
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Class Crustacea has following features:

(1) Cephalothorax, book lungs, chitinous exoskeleton

(2) Head and thorax, biramous appendages, book lungs

(3) Head and thorax, book lungs, chitinous exoskeleton

(4) Cephalothorax, biramous appendages, gills

Subtopic:  Phylum Arthropoda |
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints

Which of the following is wrongly matched?

(1) Haemoglobin in mammals – RBC

( 2) Haemozoin – Plasmodium cytoplasm

(3) Haemocyanin – leeches

(4) Haemoglobin dissolved in blood – Pheretima

Subtopic:  Phylum Annelida | Phylum Mollusca |
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints

Which of the following is correct about nematocyst?

(1) It can be re-used.

(2) It is excretory organ in arthropods

(3) It is ejected on contact and pierce the prey

(4) None of these

Subtopic:  Phylum Coelenterata |
 72%
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints

Ambulacral grooves are absent in the living forms of the Class

(1) Crinoidea

(2) Asteroidea

(3) Ophiuroidea

(4) Echinodermata

Subtopic:  Phylum Echinodermata |
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints

Which of the following Phyla are included in Enterozoa?

(1) Annelida, Mollusca, Porifera

(2) Echinodermata, Hemichordata, Porifera

(3) Mollusca, Arthropoda, Hemichordata

(4) Porifera, Mollusca, Arthropoda

Subtopic:  Basis of Classification:I | Basis of Classification:II | Basis of Classification |
 63%
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints

Hydra receives impulses and stimuli through

(1) nerve net

(2) nematocytes

(3) sensory cells

(4) flame cells

Subtopic:  Phylum Coelenterata |
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints