Which of the following enzymes serve as catalysts in metabolism? i. amylase ii. lactase iii. pepsin iv. polymerase

What are charcteristics of lithosphere?

Actinobacteria sp. are fermenting organisms (which do you use oxygen to breathe) referred to as chemoorganohetereotrophs this means they break down organic material and convert it to inorganic material. which part of the carbon cycle does this describe

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