(i) Write the scientific names of the two species of filarial worms causing filariasis. (ii) How do they affect the body of infected persons(s)? (iii) How does the disease spread?

Give the scientific name of filarial worm. How is it spread from man to man?

Name the plant source of the drug popularly called "smack". How does it affect the body of the abuser?

(a) Write the scientific names of the causative agent and vector of malaria, and write its symptoms. (b) Name any two diseases spread by Aedes sp.

Answer in one word or one line: (i) Give the scientific name of earthworm. (ii)Give the common name of Periplaneta americana. (iii) How many spermatheca are found in cockraoch ? (iv) What is the position of ovaries in cockroach ? (v) What is the name of tracheal opening in cockroach ? (vi) How many segments are present in the abdomen of cockroach ? (vii)Name the part of alimentary canal of frog where the gullet opens. (viii)Where do you find Malpighian tubules ?

Name an opiod drug and its source plant. How does the drug affect the human body?

Explain the cause of algal bloom in a water body. How does it affect an ecosystem?

Name one chronic disease that is associated with respiratory system. How it affects out body ?

Name an opioid drug and its source plant. How does the drug affect the human body?

A reaction is first order in A secod order in B : (i) write differential rate equation. (ii) How is the rate affected when the concentration of B is tripled ? (iii) How is the rate affected when the concentration of both A and B is doubled?