class 12 biology notes​

“Support and Movement” in the body involve the skeletal and muscular systems, working together to provide structure, stability, and enable physical movement. Class 12 biology chapter 2 ​In skletal muscle, calcium facilitates contraction by binding to: Actin The sites where nerve impulse is transmitted from the nerve endings to the skeleton muscle cell membranes are … Read more

Homeostasis is the body’s ability to maintain stable internal conditions, such as temperature and pH, despite external changes, ensuring optimal functioning of physiological processes. Biology class 12 chapter 1 Notes The animals which are capable of varying degrees of endothermic heat production but generally do not regulate their body temperature within a narrow range: Heterotherms … Read more