Biology

Q. Liver flukes belong to the phylum ___.

1. Porifera
2. Coelenterata
3. Platyhelminthes
4. Nematoda

Q.

Give two examples of Porifera or Sponges. [1 MARK]

Q. Stinging cell is a characteristic feature of phylum _______.

1. Coelenterata
2. Porifera
3. Protozoa
4. Arthropoda

Q.

Four chambered heart is found in

1. Draco

2. Hemidactylus

3. Tortoises and turtles

4. Crocodile

Q.

List out key features of phylum Chordata. [2 MARKS]

Q.

If you cut a planaria vertically, you will get two equal halves. What does this indicate?

1. The organism is symmetrical

2. The organism is radially symmetrical

3. The organism is spherically symmetrical

4. The organism is bilaterally symmetrical

Q. How do annelids differ from arthropods? [3 MARKS]

Q.

Sponges have a cell aggregate body plan with numerous pores all over their body. To which phylum do they belong?

1. Porifera

2. Coelenterata

3. Platyhelminthes

4. Nematoda

Q.

What are main features of phylum Coelenterata? Give two examples of organisms that belong to Coelenterata. [3 MARKS]

Q.

What is a notochord? What does it do? [2 MARKS]