Biology · General Awareness

Aquatic and Marine Biology

1,834 Questions

This hub covers key concepts in aquatic and marine biology, including fish anatomy, marine animal behavior, and commercial fisheries. These topics are essential for general science sections in various competitive exams. Use these resources to test your knowledge of diverse aquatic ecosystems.

Marine animal adaptationsCommercial fisheriesFish anatomyAquatic ecosystems

Aquatic and Marine Biology Questions

Multiple choice

Dog fish belongs to the class of

  1. Pisces

  2. Mammalia

  3. Reptilia

  4. Amphibia
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Dog fish (Scoliodon) is a cartilaginous fish belonging to the class Chondrichthyes, which falls under the superclass Pisces.

Multiple choice

Whale belongs to which class?

  1. Reptilia

  2. Mammalia

  3. Aves

  4. Pisces
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Whales are aquatic mammals that breathe air through lungs, give birth to live young, and nurse them with milk. They do not belong to the classes of fish, reptiles, or birds.

Multiple choice

Animals that can live on land and water.

  1. Amphibious

  2. Carnivorous

  3. Herbivorous

  4. Graminivorous
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Amphibious animals are those that can live both on land and in water. Carnivorous, herbivorous, and graminivorous refer to dietary habits.

Multiple choice

Aquaculture includes keeping of

  1. prawns

  2. mussels

  3. labeo

  4. oysters
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The practice of culturing fresh water fishes is known as aquaculture. Labeo is a fresh water fish. Prawns, mussels and oysters are marine fishes.