2-fingered Feathers Toothless Wishbone

Albertosurus
Archaeopteryx
Chicken
Ostrich
T. Rex

sort

Albertosaurus: 2-fingered and toothless

Archaeopteryx: Feathers and wishbone
Chicken: Feathers and wishbone
Ostrich: Feathers and wishbone
T. Rex: 2-fingered and toothless

Which of the dinosaurs is most closely related to modern birds according to this tree?

1 point
Albertosurus
T. Rex
Archaeopteryx
Dinosaurs, like all birds, are not real.

According to the tree provided, Archaeopteryx is most closely related to modern birds.

what does dorudons, blue whales, and killer whales have in common that the other species do not?

1 point
Underwater nursing
Living in seawater
Tail flukes
Ability to shoot rainbows out of their eyes

Living in seawater

For a mutation to have an affect on the species as a whole, it must:

1 point
Be neutral and not affect the survival of the individual
Be inheritable and be able to be passed on to offspring
Be able to benefit the individual

Be inheritable and be able to be passed on to offspring

What is best to determine if species are closely related?

1 point
They have similar physical traits.
They have similar genetic make up.
They live in the same geographic area.
They are easily stackable!

They have similar genetic make up.