Name one sexually transmitted disease each caused by a bacterial infection and viral infection. How can they be prevented?
Updated 1/12/2026
List any two factors that could lead to speciation.
Updated 1/12/2026
For two statements are given- one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below: a. Both A and R are true, and R is correct explanation of the assertion. b. Both A and R are true, but R is not the correct explanation of the assertion. c. A is true but R is false. d. A is false but R is true. Assertion: ln grasshoppers, females are hetero gametic and males are homo gametic. Reason: ln grasshoppers, male has only one sex chromosome (XO) whereas the female has sex chromosomes (XX).
Updated 1/12/2026
What is excretion? How do unicellular organisms remove their wastes?
Updated 1/12/2026
Name two hormones secreted by pancreas. Write one function of each hormone named.
Updated 1/12/2026
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