Question

18
Which of these processes were at work in the evolution of the sightless cavefish?
1. loss of genes due to high energy cost
Il diversion of available resources to useful parts
MIL formation of new sense organs to replace old ones
IV. loss of organs to avoid wasting precious energy
A. only I and III
B. only II and IV
C. only IV
D. All - I, II, III and IV​

Answer 1

Answer:

The fact that cave fishes don't use their eyes has no effect on their genes. Instead, cave fishes are blind because something happened to the genes that control the development of their eyes. This change is passed on from parent to offspring. That explains why a blind fish would have blind offspring.

Explanation:

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