ICONS

Question 1

What are the 6 ICONS of evolution?

Answer 1

1. Heckel’s drawings
2. Finches in the Galapagos
3. 4-winged fruit fly
4. Antibiotic resistant bacteria
5. The tree of life
6. Fossil record

Question 2

What is heckels drawings ICON?

Answer 2

He made up his drawings so that they look more similar, switches around stages and leaves out the early stages of development.

The chart is supposed to show homology

Question 3

What is the finch ICON?

Answer 3

They finches aren’t actually a new species forming or real evolutionary change, just a species of oscillating back and forth and adapting to temperature change

Question 4

What is micro evolution vs macro?

Relates to the finch ICON

Answer 4

Micro- small changes IN a species

Macro- changing that make a new species

Question 5

What is the 4 winged fruit fly ICON?

Answer 5

It can’t even survive, so the evolution is not a step forward- it’s a dead end because the trait doesn’t help the species

The mutations can’t pass on cause the fly can’t even reproduce

Question 6

What the antibolic resistant bacteria ICON?

Answer 6

The resistant cells (the mutation) don’t last in competition with the parents

The evolutionary change is permemnant

Question 7

What is the tree of life ICON?

Answer 7

Homology is used to try to prove this, but homology says that these organisms with the similar structures are produced by the same genes (relating them)
However, the organisms came from different genes, disproving this

Question 8

What is he fossil record ICON?

Answer 8

It shows the “gradual development of life” which ignores the Cambrian explosion which was sudden life

Also, not all of the fossils showed up in the record (such as soft body) not showing evolution but suddenness when they finally appeared

Question 9

Is artifact hypothesis?

Answer 9

Perhaps we aren’t searching for or collecting fossils effectively