Phylum Platyhelminthes

Q. Which among the following organisms belong to phylum Platyhelminthes?

1. Earthworm
2. Leech
3. Jellyfish
4. Liver fluke

Q.

Have you seen any other organisms besides redworms in your pit? If yes, try to find out their names.

Q.

Name two parasitic members of phylum Platyhelminthes.

Q. Identify the ectoparasite(s) from the given animals.

1. Tape worm
2. Leech
3. Petromyzon
4. Filarial worm

Q. Identify the characteristic not belonging to Phylum Platyhelminthes?

1. Their body have true coelom.
2. They are triploblastic.
3. These animals are hermaphrodite.
4. They are also called flatworms.

Q. Where does the fertilization occur in human females?

1. Cervix
2. Uterus
3. Vagina
4. Oviduct

Q. Match the features listed under column I with their animal groups under column II and choose the correct option.

$\begin{array}{cc}\text{Column 1}& \text{Column 2}\\ \text{1. Cnidoblasts}& \text{p. Sponges}\\ \text{2. Collar cells}& \text{q. Flatworms}\\ \text{3. Pseudocoelom}& \text{r. Coelenterates}\\ & \text{s. Roundworms}\end{array}$

1. 1-r, 2-p, 3-s
2. 1-p, 2-r, 3-s
3. 1-q, 2-r, 3-s
4. 1-s, 2-p, 3-q

Q. What mode of excretion is found in fishes and frog?​

Q. The fusion of male and female gametes is termed as .

1. pollination
2. reproduction
3. fertilisation

Q. Where does the fertilization occur in human females?

1. Uterus
2. Cervix
3. Vagina
4. Oviduct

Q. The fusion of male and female gametes is termed as .

1. pollination
2. reproduction
3. fertilisation

Q. Write any two parasitic adaptations in leech.

Q. The fusion of male and female gametes is termed as .

1. pollination
2. reproduction
3. fertilisation

Q. The fusion of male and female gametes is termed as .

1. reproduction
2. fertilisation
3. pollination