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RNA is single stranded whereas DNA is double stranded

RNA has uracil whereas DNA has thymine

RNA contain the pentose sugar ribose whereas DNA has deoxyribose

Glycolysis produces energy through the form of ATP. ATP is created directly from glycolysis through the process of substrate-level phosphorylation (SLP) and indirectly by oxidative phosporylation (OP). Th...

Lumen sizes in blood vessels differ due to the differing functions of the vessels themselves.

Arteries have to carry oxygenated blood away from the heart to the tissues at high pressure. Small lume...

The nerve impulse arrives at the synapse. This triggers vesicles to release chemical messengers (neurotransmitters) into the synapse. These chemicals diffuse across the synapse and bind with membrane rece...

You always start with the sun which gives its every to grass which is a producer of energy. The arrow in the food chain, therefore, travels in the direction the energy travels in  (in this case from the s...