The bone in layer D is the femur of a pig that went extinct 25,000 years ago. What can this tell us about this layer, as well as the layers above it?
Added by Brandon S.
Step 1
Since the pig species went extinct 25,000 years ago, the bone must be at least that old, indicating that layer D is at least 25,000 years old. Show more…
Show all steps
Your feedback will help us improve your experience
Ameer Said and 60 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
An Archaeopteryx is an extinct animal having feathers like a bird but also having very prominent teeth. Five fossilized specimens of this creature have been found with the lengths of the femur (a leg bone) plotted against the lengths of the humerus (a bone in the upper arm). Femur: 38, 56, 59, 64, 74 Humerus: 41, 63, 70, 71, 76 Archaeologists have long felt that there should be a positive linear correlation between the lengths of the femur and the lengths of the humerus in these extinct creatures. What do the above data suggest?
Ameer S.
Woolly mammoths are extinct relatives of modern-day elephants. The mammoths were heavier and shaggier than elephants, their ears were smaller, and they had a thick fat layer under their skin. Explain each of these differences in light of the fact that today's elephants originate in Asia and Africa, whereas mammoths lived on the tundra.
A scientist is examining layers of the earth and tracking information about animal fossils found in each layer. For many of the deeper layers there are consistently large animal skulls but there is a sudden shift in the skull size in one layer and they are all much smaller at that point for the remaining layers until the earth's surface. What does this suggest?
Madhur L.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD