Centrioles is the organelle.
Lysosomes are a cell organelle<span> that contains digestive enzymes and are specialized in</span><span> digesting food particles, cell parts, and foreign invaders.</span>
<span>Adaptive evolution is always changing because the environment is changing continuously.
Hence,
The right answer would be :
</span><span>Adaptive evolution is a fluctuating change in a trait.</span>
The specific action of an enzyme with a single substrate can be explained using a Lock and Key analogy first postulated in 1894 by Emil Fischer. In this analogy, the lock is the enzyme and the key is the substrate. Only the correctly sized key (substrate) fits into the key hole (active site) of the lock (enzyme).
Smaller keys, larger keys, or incorrectly positioned teeth on keys (incorrectly shaped or sized substrate molecules) do not fit into the lock (enzyme). Only the correctly shaped key opens a particular lock. This is illustrated in graphic on the left.
Hope this helps
the human activity in List A to its effect on the environment in List B
