Answer:
A.
Explanation:
Dinosaurs and old trees are samples of ancient earth which can be compared to the actual world showing the difference between now and then.
The reactants of photosynthesis are carbon dioxide and water, meaning during photosynthesis carbon dioxide and water are taken in to create energy. The reactants of cellular respiration are glucose (sugar) and oxygen, these are taken in by animals and humans to produce energy.
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Explanation:
The end products of Photosynthesis are starting products(reactants) of Respiration.
End products of Respiration are starting products(reactants) of Photosynthesis
I think it’s C explanation : i learned this a while ago
In biology, the active site is the region of an enzyme where substrate molecules bind and undergo a chemical reaction. The active site consists of residues that form temporary bonds with the substrate (binding site) and residues that catalyse a reaction of that substrate (catalytic site).
I think the Atrial fibrillation is the uncoordinated beating of the atria rapid. These are rhythm in which all the atrial activity is depicted as chaotic undulations of the base line. Atrial rhythms include; atrial fibrillation, atrial flutter, premature atrial contraction, wandering pacemaker. Atrial fibrillation can cause an increased risk of stroke, heart failure and other heart related complications.
