Question

Qus-1)- Difference between : - Vertebrate & Invertebrate

Qus-2)- What is contractile vacuole?

Qus-3)- Why fishes are said to have stream lined body?

Qus-4)- Why bryophytes are called amphibian of the plant kingdom?

Qus-5)- Write difference between Autotrophs & Heterotrophs?

Qus-6)- Write any two uses of Bacteria?


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Answer 1

Answer:

1 )vertebrate are the animals which have a back bone and invertebrate are the animals which do not have back bone

2)In certain organisms, usually single-celled organisms lacking a cell wall, there exists a special kind of vacuole, called a contractile vacuole

3) fishes are said to have a streamlined so that they can easily move in water