Photosynthesis — Biology STD 10 — Question

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

When the cells of the plants are fully stretched, the condition is called

Which one of the following is the most significant feature of the Indian population?

Choose the Odd One Out:

The extinct human who lived 1,00,000 to 40,000 years ago, in Europe, Asia and parts of Africa, with short stature, heavy eye brows, retreating forehead, large jaws with heavy teeth, stocky bodies, a lumbering gait and stooped posture was:

Assertion (A): The male reproductive system includes a pair of testes and a single duct called the vas deferens. Reason (R): The testes produce sperm and testosterone.

Axon is enclosed in multilayered sheath called