Plant organs are comprised of tissues working together for a common function. The different types of plant tissues are m..
Physiology is the study of how living organisms function. Thus, human physiology deals specifically with the physiologic..
Animals living in aquatic habitats have diversified and evolved through time. They eventually occupy ecological niches a..
This tutorial looks at the relationship between organisms. It also explores how energy is passed on in the food chain an..
Leaves are the major photosynthetic organ of a plant. Apart from that, they are also crucial to water movement. In this ..
Certain species are capable of expressing characteristics indicative of the state of the ecosystem they occupy. They are..