Question

According to Darwin's 1859 theory of evolution, why are complex reflexes considered products of natural selection?

A) Because complex reflexes are purely random responses to stimuli.
B) Because complex reflexes consist of units that have evolved over time through natural selection.
C) Because complex reflexes are solely a result of conscious decision-making.
D) Because complex reflexes have no evolutionary significance.

Answer 1

b. Complex reflexes are considered products of natural selection because they consist of units that have evolved over time.

Step-by-step explanation:

In Darwin's theory of evolution, b. complex reflexes are considered products of natural selection because they consist of units that have evolved over time through natural selection. Complex reflexes are not purely random responses to stimuli, but rather they are adaptive behaviors that have been selected for because they increase an organism's chances of survival and reproduction.

For example, the ability of birds to build nests and migrate, or the instinct of salmon to swim upstream to spawn, are complex reflexes that have evolved through natural selection.