Multiple Choice
Which of the following best describes a phylogenetic tree of primates?
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21. Evolution
Introduction to Evolution and Natural Selection
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Which anatomical feature would you expect to find in the fossil remains of a nocturnal species?
A
Reduced olfactory bulbs
B
Shortened limb bones
C
Thick, heavy jawbones
D
Large eye sockets relative to skull size
Verified step by step guidance1
Understand the context of the question: Nocturnal species are animals that are active during the night. Their anatomical features are often adapted to low-light environments, which is a key clue for solving this problem.
Recall the biological adaptations of nocturnal species: These animals typically rely heavily on their vision in dim light, so they often have large eyes or large eye sockets to allow more light to enter and improve their night vision.
Analyze the options provided: Reduced olfactory bulbs would indicate a decreased sense of smell, which is not typical for nocturnal species. Shortened limb bones and thick, heavy jawbones are not directly related to nocturnal activity or vision.
Focus on the correct feature: Large eye sockets relative to skull size are a common adaptation in nocturnal species, as they accommodate larger eyes that enhance their ability to see in the dark.
Conclude the reasoning: Based on the adaptations of nocturnal species, the correct anatomical feature to expect in their fossil remains is large eye sockets relative to skull size.
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