The Nervous System and Sense Organs — Biology STD 10 — Question

Which human ancestors had mastered the art of making stone tools?

If waste materials contaminate the source of drinking water which of the following diseases will spread?

Somatic cells divide by

Which one of the following is the route that a sperm follows when it leaves the testes of a mammal?

Assertion (A): High birth rates are the primary reason for India's large population.
Reason (R): Government policies have consistently promoted high fertility rates to ensure economic growth.

The space between the cell wall and plasma membrane in a plasmolysed cell is filled with ______.

Which one is the control measure of radiation pollution?

The excretory system is responsible for removing _____________ from the body, which is filtered by the_____________ to maintain homeostasis.

The nuclear membrane and nucleolus become indistinguishable during