Body Symmetry

Q.

The ovule of an angiosperm is technically equivalent to:

1. Megaspore

2. Megasporophyll

3. Megaspore mother cell

4. Megasporangium

Q. Identify the animals that exhibht radial body symmetry.

1. Human beings
2. Star fish
3. Salamander
4. Pigeons
5. Sea anemone
6. Earthworms

1. 1, 3, 4 and 6
2. 2, 5 and 6
3. 2 and 5
4. 5 and 6

Q. Choose the phylum in which the organisms are bilaterally symmetrical in the larval stage but are radially symmetrical in the adult stage .

1. Mollusca
2. Annelida
3. Arthropoda
4. Echinodermata

Q. In radial symmetry, to get two equal parts, we can cut the organism only through one plane.

1. True

2. False

Q.

Which of the following do not have bilateral symmetry

1. Butterfly

2. Crab

3. Human

4. Star Fish

Q.

If you cut Planaria vertically, you 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. Describe is the body symmetry observed in:
(i) Starfish
(ii) Gorilla
(iii) Paramecium

Q.

in which phylum do whale belong to?

Q. Animals exhibiting .......... symmetry can be cut into two equal halves by one plane

1. Radial symmetry
2. Spherical symmetry
3. Bilateral symmetry
4. All of the above