Biological Classification Question 24

24. How many organisms in the list given below are autotrophs?

(a) Four

(b) Five

(c) Six

(d) Three

Show Answer

Answer : c

Hints & Solutions

(c) Autotrophs are those organisms that are able to make energy-containing organic molecules from inorganic raw material by using basic sunlight. Nostoc, Chara, Porphyra and Wolffia are photoautotrophs while Nitrosomonas and Nitrobacter are chemoautotrophs.