Asked by Sandra Nikoljic on Sep 24, 2024
Verified
Although there appears to be considerable variability in lengths of necks in a population of giraffes,the fossil record shows a definite shift to longer necks over the course of time.What is the most likely conclusion about the shift to longer necks?
A) The population is undergoing stabilizing natural selection.
B) The population is undergoing directional natural selection.
C) The population is undergoing discontinuous natural selection.
D) The population is undergoing diversifying natural selection.
Fossil Record
The accumulation of evidence from preserved remains or impressions of organisms from past geologic ages.
- Understand the various forms of natural selection and their effects on species.
Verified Answer
PP
PRATIK PATEL6 days ago
Final Answer :
B
Explanation :
The shift to longer necks over time suggests that natural selection is favoring individuals with longer necks, and this is driving the population towards longer necks. This is an example of directional selection.
Learning Objectives
- Understand the various forms of natural selection and their effects on species.
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