Question
What is the function of excretory system in humans?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

| ‘A’ group | ‘B’ group |
| (1) Xylitol | (a) Pigment |
| (2) Citric acid | (b) To impart sweetness |
| (3) Lycopene | (c) Microbial restrictor |
| (4) Nycin | (d) Protein binding emulsifier |
| (e) To impart acidity |
| Scientist | Discovery |
| (1) Johann Gregor Mendel | (a) Chromosomes of grasshopper |
| (2) Hugo de Vries | (b) DNA is genetic material |
| (c) Pioneer of the modern genetics | |
| (d) Mutational theory |
In biological pest control methods it is widely used. Some insects, on the contrary are very harmful. Mosquito, bed bugs, lice are blood sucking parasites which can spread the diseases. Mosquito is a vector for dengue, filariasis and malaria. Some are biting insects that can cause wounds, some cause allergies of various kinds. The grains and crops are destroyed to great extent by the insects. In this way the insects belonging to the phylum Arthropods are harmful to health, wealth and peace of mind too.
(ii) Which are the animals from phylum Arthropoda those have shortest and longest life span?