Enzymes<span> are catalysts, which means that they make chemical reactions go faster, but are not changed by the reaction. For example, digestive </span>enzymes<span> cause food that you eat to be broken down much faster than </span>would<span> occur </span>without<span> them, but they are not broken down in the reaction they are speeding up.
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Answer:
They digest without the use of teeth.
Explanation:
The food trickles from the crop into the bird's stomach (proventriculus or gizzard) where digestive enzymes are added to the mix and physical grinding of the food occurs. The gizzard is why chickens do not need teeth.
Answer:
D. A cyanobacterium
Explanation:
Cyanobacteria have gas vacuoles, thykaloid membranes and carboxysomes
Answer:
(a) and (d) are correct
Explanation:
AIDS is a disease that's usually transmitted by sexual contact and breast feeding.
