MCQ
Stems are
- APositively phototropic
- BNegatively geotropic
- CNegatively hydrotropic
- ✓All of the above
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$(I)$ Majority of flowering plants use a range of animals as pollinating agents.
$(II)$ Among the animals, insects particularly flies are the dominant biotic pollinating agents.
$(III)$ Majority of insect pollinating flowers are small and less colorful.
$(IV)$ The body of the animal gets a coating of pollen grains, which are generally sticky in animal pollinated flowers.
| Column-$I$ | Column-$II$ |
| (Cell type) | (Size) |
| $A$. Viruses | $I$. $1-2\; mm$ |
| $B$. $PPLO$ | $II$. $10-20\; mm$ |
| $C$. Eukaryotic cell | $III$. About $0.1\; mm$ |
| $D$. Bacterium | $IV$. $0.02-0.2\; mm$ |
$(i)$. Membrane-bounded inclusion bodies are not found in prokaryotic cells.
$(ii)$. Ribosomes are the site of protein synthesis.
$(iii)$. Pili are the surface structure of the bacteria which may play a role in motility.
$(iv)$. The cell membrane of prokaryotes is structurally similar to the eukaryotes.
Choose the option with the correct statements.