Question

question 2
1 pts
natural selection is
the same thing as evolution.
a random event in nature.
the survival of strongest.
the outcome of differences in survival and reproduction among individuals that differ in details of heritable traits.
question 3
1 pts
the mechanism that drives the evolution of new species is
analogy.
the fossil record.
natural selection.
homology.

Explanation:

Question 2

• Option 1: Natural selection is a mechanism of evolution, not the same as evolution itself. So this is wrong.
• Option 2: Natural selection is not random; it depends on heritable traits and environmental pressures. So this is wrong.
• Option 3: It's not just about the "strongest" but about traits that aid survival and reproduction in a given environment. So this is wrong.
• Option 4: This matches the definition of natural selection: individuals with favorable heritable traits survive and reproduce more, leading to changes in populations.

• Option 1: Analogy refers to similar structures in different species due to similar functions, not a mechanism for new species evolution. So this is wrong.
• Option 2: The fossil record is evidence of evolution, not a driving mechanism. So this is wrong.
• Option 3: Natural selection is the main mechanism that drives the evolution of new species by favoring traits that enhance survival and reproduction, leading to speciation over time.
• Option 4: Homology refers to similar structures due to common ancestry, not a mechanism for new species evolution. So this is wrong.

Answer:

the outcome of differences in survival and reproduction among individuals that differ in details of heritable traits.

Question 3