Hormones are produced in the endocrine glands of animals. The pituitary gland and hypothalamus are the most impor..
Mutations can also influence the phenotype of an organism. This tutorial looks at the effects of chromosomal mutations, ..
Plants are responsible for incredible feats of molecular transformation. Plant processes, such as photosynthesis, photop..
A typical eukaryotic cell is comprised of cytoplasm with different organelles, such as nucleus, endoplasmic reticulum, G..
A running water environment offers numerous microhabitats for many types of animals. Similar to plants, animals in lotic..
This tutorial investigates perception as two people can interpret the same thing differently. Know more about human perc..
