Ferns and their relatives are vascular plants, meaning they have xylem and phloem tissues. Because of the presence of va..
There are more species of insects than any other species combined. This surely illustrates that insects have the selecti..
Hormones are produced in the endocrine glands of animals. The pituitary gland and hypothalamus are the most impor..
Osmoregulation is the regulation of water concentrations in the bloodstream, effectively controlling the amount of water..
While learning and intelligence are associated with the functions of a conscious mind, sleep and dreams are activities o..
Humans are diploid creatures. This means that for every chromosome in the body, there is another one to match it. Howeve..
