Choose the correct option in each of the following.
1. Penicillin is obtained from a
(a) protozoan
(b) bacterium
(c) mould
(d) mushroom
2. Lower plants and plantlike organisms reproduce by producing a single cell encased in a togn
membrane. This is called
(a) spore
(b) sporangium
(c) mycelium
(d) seed
3. Algin is derived from
(a) bacteria
(b) algae
(c) fungi
(d) protozoans
4. Seabeds have large deposits of silica derived from
(a) snaills
(b) protozoans
(c) bacteria
(d) diatoms
5. Microorganisms living in the roots of peas, grams, and so on, can convert nitrogen ot the air to
nitrates. These are
(a) bacteria
(b) protozoans
(c) diatoms
(d) viruses
Answers
Answered by
6
Answer:
1. penicillin is obtained from a mould penicillin notatum.
3. algin is obtained from brown algae.
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