MCQ
The diaphragm, cervical cap and vaults are.
- ADisposable contraceptive devices.
- ✓Reusable contraceptives.
- CNon$-$medicated $\text{IUDs}.$
- D$Cu-$releasing $\text{IUDs.}$
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$(1)$ They have dark colour and high rate of reproduction and excrete solid urine.
$(2)$ They do not drink water, breathe at a slow rate to conserve water and have their body covered with thick hairs.
$(3)$ They feed on dry seeds and do not require drinking water.
$(4)$ They excrete very concentrated urine and do not use water to regulate body temperature.
Which two of the above statements for such animals are true ?
Make the correct pair :
| Column $- I$ | Column $- II$ |
| A- Tapetum | i- Degenerate during development |
| B- Intine | ii- Resistant organic materials |
| C- Vegetative cell | iii- Pollen tube |
| D- Sporopollenin | iv- Provide nourishment to pollen grains |
$1.$ Therapeutics
$2.$ Agriculture
$3.$ Diagnosis
$4.$ Bioremediation