Evolution Lab Answers: Evolution 101 and Tree of Life, Slides of Evolutionary biology

The answers to various questions related to the concepts of natural selection and the evolutionary relationships between different organisms, as covered in the evolution 101 and tree of life sections of a biology course.

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2021/2022

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The Evolution Lab ANSWER KEY
EVOLUTION 101
1. c
2. c
3. c
4. Sample answer: The bird is eating the yellow insect. This is probably because it was easier to see and catch
than the green one, which is blended in with the leaf. This illustrates natural selection because a variation
(green color) is giving some of the insects an advantage that will help them to survive longer and reproduce
more frequently than the yellow-colored insects.
5. d
MISSION 1: Training Trees
Introductory video:
1. c
2. a
3. The common ancestor of B and C
4. A and B: trait 1; B and C: traits 1 and 3
5. From left to right, trees 1, 3, and 4 are equivalent.
Red, green, & gecko:
6. c
7. They are heterotrophs.
8. Any two of these four trees:
9. Sample answer: Because mushrooms and plants look a lot more alike than do mushrooms and animals, and
neither move around like animals do—you might think that the mushroom and plant are more closely related
than the mushroom and animal.
Familiar faces:
10. An amniote is an animal whose embryos develop inside the set of protective membranes. The snake and
dog are amniotes.
11. Sample answer: Hair
Tree of life—Vegetarian edition:
12. c
13. Sample answer: Because an onion is a vegetable, but bananas and lemons are both yellow fruits—you might
think that the banana and lemon plants are more closely related than banana plants and onion plants.
1
Gecko
Palm
tree
Fly
agaric
Gecko
Palm
tree
Fly
agaric
Gecko
Palm
tree
Fly
agaric
Gecko
Palm
tree
Fly
agaric

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The Evolution Lab ANSWER KEY

EVOLUTION 101

  1. c
  2. c
  3. c
  4. Sample answer: The bird is eating the yellow insect. This is probably because it was easier to see and catch than the green one, which is blended in with the leaf. This illustrates natural selection because a variation (green color) is giving some of the insects an advantage that will help them to survive longer and reproduce more frequently than the yellow-colored insects.
  5. d MISSION 1: Training Trees Introductory video:
  6. c
  7. a
  8. The common ancestor of B and C
  9. A and B: trait 1; B and C: traits 1 and 3
  10. From left to right, trees 1, 3, and 4 are equivalent. Red, green, & gecko:
  11. c
  12. They are heterotrophs.
  13. Any two of these four trees:
  14. Sample answer: Because mushrooms and plants look a lot more alike than do mushrooms and animals, and neither move around like animals do—you might think that the mushroom and plant are more closely related than the mushroom and animal. Familiar faces:
  15. An amniote is an animal whose embryos develop inside the set of protective membranes. The snake and dog are amniotes.
  16. Sample answer: Hair Tree of life—Vegetarian edition:
  17. c
  18. Sample answer: Because an onion is a vegetable, but bananas and lemons are both yellow fruits—you might think that the banana and lemon plants are more closely related than banana plants and onion plants.

Gecko Palm tree Fly agaric Gecko Palm tree Fly Gecko agaric Palm tree Fly agaric Gecko Palm tree Fly agaric