Photosynthesis, the natural process of converting sunlight energy into chemical energy and generating molecular oxygen, is a ...

Life on Earth possesses an exceptional ability to self-reproduce, which, even on a simple cellular level, is driven by ...

Plants have small pores on the underside of their leaves, known as stomata. When the sun rises, these pores open and the plants absorb carbon dioxide (CO2) from the atmosphere, which they need, in ...

Describe the strategy you used in the game to grow your trees. How did other players' tree placement affect your ability to get sunlight? What happened when a tree was in the shadow of another tree?

Save guides, add subjects and pick up where you left off with your BBC account. Revising cellular respiration? Test your knowledge with this Higher Human biology quiz.

This process requires specialized organs such as the lungs or gills. This oxygen is used for cellular respiration and metabolism, a byproduct of which is carbon dioxide.

Cellular respiration. Image by edesignua via Depositphotos In contrast to photosynthesis, cellular respiration occurs in the mitochondria of animal cells and converts glucose and oxygen into energy, ...