24 Differences between Invertebrates and Vertebrates

Differences between Invertebrates and Vertebrates

The animal kingdom has been divided into two major groups: Invertebrates (Non-Chordates) and Vertebrates (Chordates). Invertebrates are those that do not possess a vertebral column or backbone while Vertebrates are those where vertebral column or backbone is present. These two … Read more

Active Transport- Types and Significance

Types of Active Transport

To sustain life, many substances need to be transported into, out of, and between cells. In some cases, this can be accomplished through passive transport, which uses no energy. In many cases, however, the cell needs to transport something against its concentration gradient. In … Read more

Nitrogen Cycle- Steps and Significance

Nitrogen Cycle- Steps and Significance

The movement of nitrogen between the atmosphere, biosphere, and geosphere in different forms is called the nitrogen cycle and is one of the major biogeochemical cycles.  It may also be considered as the movement of nitrogen through the food chain from simple inorganic compounds, mainly ammonia, … Read more