Equipped for Survival
The Earth is inhabited by a great variety of living organisms in a seemingly endless array of shapes and forms. From single-celled bacteria to giant sequoia trees, millipedes to moose, living things have different structures and behaviors that allow them to meet their basic needs. A hummingbird’s long thin bill lets it reach the nectar deep inside a trumpet flower. A grass plant grows from the base of its stems rather than at the tips so it can withstand grazing or fire without harm. Looking for the connections between structure and function is an important concept in biology and can be as exciting as unraveling a mystery.
Each kind of bird or spider, tree or fern, has a particular lifestyle and habitat. Organisms differ in ways that help them to survive – to avoid predation, to gather Continue reading Structure and Function