Unit 12 Evolution

Question 1

What are the keys to evolution?

Answer 1

Time and Death. Time allows for an accumulation of mutations and Death eliminates species or varieties that aren’t adapted as well as others.

Question 2

What are the requirements for natural selection to occur?

Answer 2

Variety, Competitions, a Beneficial trait, and Inheritance. There must be variety in a species, like different beak types. A competition must determine that not all members have offspring at the same rate. A beneficial trait allows some members to have more offspring. The beneficial trait must be genetic to be inherited by the next generation.

Question 3

What type of selection lead to domesticated dogs and huge ears of corn?

Answer 3

Artificial selection

Question 4

What are the 5 types of evidence for Evolution?

Answer 4

Fossils, Biogeography, Biochemistry, Homology, and Embryology. We also witness bacteria evolving.

Question 5

This type of evidence shows fish are one of our ancestors because we look like fish when we are in the womb.

Answer 5

Embryology

Question 6

This evidence shows that the the animals we see today used to be really different because the deeper we dig, the older the layer of Earth, and the increasingly different the animals were.

Answer 6

Fossils