How is carbon reintroduced into the atmosphere? A) decomposition
B) photosynthesis
C) evaporation
D) transpiration
E) all of the above

The deserts of the sahara and australia are associated with

Which of the following describes a difference when gram-positive bacteria are compared to gram-negative bacteria?

Hector is back from his morning run and is feeling light-headed because his energy is depleted which food item will provide him with a quick source of carbohydrates