Question

Read the given statements and select an option stating which one are True (T) or False (F).
(a) Chrysophytes are microscopic and float passively in water currents.
(b) The pigments of euglenoids and flagellated protozoans are identical to those present in higher plants.
(c) The ciliated protozoans, the co-ordinated movement of rows of cilia causes the water laden with food to be steered into the gullet.
(d) In general, viruses that infect animal have either single or double standard RNA or double stranded DNA.

• A. (a) - T, (b) - T, (c) - T, (d) - T
• B. (a) - T, (b) - T, (c) - F, (d) - T
• C. (a) - F, (b) - F, (c) - T, (d) - T
• D. (a) - T, (b) - F, (c) - F, (d) - T

Answer 1

The correct option is A (a) - T, (b) - T, (c) - T, (d) - T

Chrysophytes are microscopic and halophytic organisms. They float passively in water currents. Examples include diatoms, golden algae. Euglenoids and flagellated protozoans are photosyntetic in nature. They contains photosynthetic pigments such as chlorophyll a and b, identical to those present in higher plants. Their mode of nutrition is holophytic. The ciliated protozoans beat the water with a coordinated movement of rows of cilia. It causes waves in the water and the water laden with food is steered into the gullet. In general, viruses that infect animal have either single or double stranded RNA or double stranded DNA as their genetic material.

Thus, the correct answer is '(a) - T, (b) - T, (c) - T, (d) - T.'