MCQ
A terrestrial animals must be able to
- AActively pump salts out through the skin
- BExcrete large amounts of salts in urine
- CExcrete large amounts of water in urine
- ✓Conserve water
So excretion of uric acid is of greater advantage to land animals which have limited access to water. So uricotelism is an adaptation to terrestrial mode of life.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$(i)$ Arteries are thickwalled and have narrow lumen as compared to veins.
$(ii)$ Angina is acute chest pain when the blood circulation to the brain is reduced.
$(iii)$ Persons with blood group AB can donate blood to any person with any blood group under $ABO$ system.
$(iv)$ Calcium ions play a very important role in blood clotting.Which two of the above statements are correct?