This fossil turtle and this living hawk both have a structure in their neck called the atlas bone. What best explains why both species have an atlas bone?
1 point
1
Question 2
2.
This red kangaroo and this alpine newt both have a femur bone in their back limbs. However, their femur bones are very different. The red kangaroo has long femur bones that help it jump very far. The alpine newt has short femur bones that help it swim. What most likely explains why both have back limbs with a femur and why the femur bones are different?
1 point
1
Question 3
3.
This mallard duck and this moose both have bones in their feet called metatarsals. However, they have different types of feet. The duck has webbed feet that help it swim in water. The moose has feet with hooves that help it walk on hard ground. What most likely explains why both the duck and moose have feet with metatarsals and why the feet are different?
1 point
1
Question 4
4.
European moles and Sumatran tigers both have eyes. However, European moles live completely in the dark and have very small eyes, while Sumatran tigers have large eyes that can see prey from far away. What most likely explains why both European moles and Sumatran tigers have eyes and why their eyes are different?
1 point
1
Question 5
5.
This Laysan albatross and this European mole both have bones in their front limbs called phalanges (finger bones). However, their phalanges are very different. The Laysan albatross has long phalanges in its front limbs, which support its long wings during flight. The European mole has short, thick phalanges in its front limbs, which help it dig in the dirt. What most likely explains why both have phalanges and why the phalanges are different?
2 points
2
Question 6
6.
Flor is studying the evolutionary history of house geckos, Pacific gulls, and wolves. All three species share some body structures, but they also have some differences in their body structures. Below is a table that includes information about the body structures that Flor is studying.
How could Flor explain why all three species share some body structures and have some differences? AND, why do only house geckos and Pacific gulls have two temporal holes in their skulls?
CFS:
student describes the relationship between anatomical similarities and differences in animal species
student describes the environmental difference between animal species with a common ancestor based on body structures