Category: CBSE

Central Board of secondary education

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Subham Kumar

The part of the human brain that regulates swallowing and vomiting is the Medulla oblongata. This vital structure, located at the base of the brainstem, controls numerous autonomic functions including swallowing, vomiting, heart rate, breathing, and blood pressure. It serves ...

Subham Kumar

In humans, the sperm fertilizes the ovum in the Fallopian tube. After ejaculation, sperm travel through the female reproductive tract to reach the Fallopian tubes where fertilization typically occurs. The fertilized egg, or zygote, then moves down the Fallopian tube ...

Sonal Chauhan

Most of the total body weight of an animal consists of Water. Water is essential for various biological processes and constitutes a significant portion of an animal’s body composition, playing crucial roles in maintaining cellular functions, transporting nutrients, regulating temperature, ...

Sonal Chauhan

Gases enter and leave the blood during respiration primarily by Diffusion. This passive process allows oxygen to move from the lungs into the bloodstream and carbon dioxide to move from the bloodstream into the lungs for exchange with the environment.