1.How evolution is essential for speciation? Ans.: Evolution is a gradual process of accumulation of variations that provide survival advantage.…
Key Points Digested food is able to pass into the blood vessels in the wall of the small intestine through…
Science Worksheet Grade X Life Processes Fill in the Blanks The whole process by which an organism obtains le…
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Heredity is the process of transmission of traits/characters from parents to the offspring or progeny A trait is any characteristic…
Blood pressure is the pressure against the wall of blood vessels produced by the discharge of blood into them by…
The separation of right and left sides of heart is useful to prevent oxygenated and deoxygenated blood from mixing. Such…
Natural selection can change a species in small ways, causing a population to change color or size over the course…
Brain is the highest coordinating in the body. situated in the cranial cavity of the skull. The bone of cranium…