Upon fertilization, a zygote forms and develops into an embryo. This tutorial elaborates on the growth and development f..
Humans are diploid creatures. This means that for every chromosome in the body, there is another one to match it. Howeve..
A running water environment offers numerous microhabitats for many types of animals. Similar to plants, animals in lotic..
Plants and animals need elements, such as nitrogen, phosphorus, potassium, and magnesium for proper growth and developme..
Neurons generate electric signals that they pass along to the other neurons or target tissues. In this tutorial, you wil..
Geological periods is a study guide that cites the different geological periods on Earth's timeline. Each has a brief ov..
