Degrees of freedom
in statistics, the number of independent comparisons that can be made between the members of a sample (e.g., subjects, test items and scores, trials, conditions); in a contingency table it is on e less than the number of row categories multiplied by one less than the number of column categories.
poop
Proteins and minerals can be derived from various dietary sources. They are essential for the proper growth and developm..
The nervous system is essentially a biological information highway. This tutorial gives an overview of the nervous syste..
Plants are characterized by having alternation of generations in their life cycles. This tutorial is a review of plant m..
Some of the body movements can be controlled at will, others cannot. The body has a motor program, which is the pattern ..
According to Charles Darwin's theory of natural selection, preferable genes are favored by nature in the gene pool, and ..
Plants, like animals, produce hormones to regulate plant activities, including growth. They need these hormones to respo..