Chronic disease
diseases which have one or more of the following characteristics: they are permanent, leave residual disability, are caused by nonreversible pathological alteration, require special training of the patient for rehabilitation, or may be expected to require a long period of supervision, observation, or care.
This tutorial looks at the relationship between organisms. It also explores how energy is passed on in the food chain an..
The human body is capable of regulating growth and energy balance through various feedback mechanisms. Get to know the e..
Upon fertilization, a zygote forms and develops into an embryo. This tutorial elaborates on the growth and development f..
This lesson is about the methods used for ecological research, such as quadrat and transect sampling, canopy fogging, an..
Neurons generate electric signals that they pass along to the other neurons or target tissues. In this tutorial, you wil..
According to Charles Darwin's theory of natural selection, preferable genes are favored by nature in the gene pool, and ..
