sepal
(Science: botany) A member of the (usually green) outer whorl of non-fertile parts surrounding the fertile organs of a flower.
One of the green parts that form the calyx of a flower.A specialised structure that appears in plants, usually to protecting a new growing shoot, though its function can vary from species to species.
This tutorial looks at sex determination via the sex chromosomes, X and Y. Read it to get more info on X and Y chromosom..
This tutorial elaborates on the physical development of humans, particularly from puberty to adulthood. Read this tutori..
Mutations can also influence the phenotype of an organism. This tutorial looks at the effects of chromosomal mutations, ..
There are many environmental factors that arise due to the usage of water in one way or another and for every action tha..
ATP is the energy source that is typically used by an organism in its daily activities. The name is based on its structu..
Plants, like animals, produce hormones to regulate plant activities, including growth. They need these hormones to respo..