Enzyme repression
The interference in synthesis of an enzyme due to the elevated level of an effector substance, usually a metabolite, whose presence would cause depression of the gene responsible for enzyme synthesis.
Homeostasis is essential to maintain conditions within the tolerable limits. Otherwise, the body will fail to function p..
The sea was teeming with life. Eventually, through reproduction and continued variation, fish came about. There are over..
Photosynthesis is the process that plants undertake to create organic materials from carbon dioxide and water, with the ..
The Earth's ecosphere was rapidly changing and throwing up a wide range of ecological niches that new adaptive organisms..
Ferns and their relatives are vascular plants, meaning they have xylem and phloem tissues. Because of the presence of va..
Animals living in aquatic habitats have diversified and evolved through time. They eventually occupy ecological niches a..
