Show:
Fossils
Time
Natural Selection
Adaptations
Biological Evidence of Evolution
100

An impression of an organism in a rock

mold

100

This is the chart that divides time

geologic time scale

100

This scientist was a naturalist who theorized evolution by natural selection.

Charles Darwin

100

What are the three types of adaptations?

structural

behavioral

functional

100

A human arm and  bats wing are what type of structures?

homologous

200

fossils that show the EVIDENCE OF ACTIVITY of an organism

trace fossils

200

Time is divided into 4 eons and 4 __________. 

eras

200

What are slight differences that are inherited between members of a species

variations

200

A giraffes long neck is what type of adaptation?

structural

200

structures that have similar functions but different structures are what type of structures

analogous

300

The process of an organisms original material hardening into rock

mineralization

300

The geologic time scale suggests there have been ___ mass extinction events.

5

300

When a population reproduces, variations allow a species to _____________ better in their environment than other members of the SAME species. 

compete

300

Gazelle move in herds.  This is what type of adaptation?

Behavioral

300

body parts that have lost their original function are

vestigial structures

400

How fossils are dated in undisturbed sedimentary rock layers.

relative-age dating

400
Environment can change in two different ways.  What are they?

suddenly and gradually

400

Natural selection allows an organism to do what 3 things better than all other organisms of that species

1. Breed more

2. Live longer

3. Compete better for resources

400

A bearded dragon will go into brumation whenever temperatures decrease and there is a lack of resources.  What type of adaptation is this?

functional 

400
What anatomical part do many embryos have during development?

pharyngeal pouches

500

Fossils that lived for a short period of time, was abundant on Earth, were found in many areas (widespread).

index fossils

500
Solve: 

write the number 200,000,000 in scientific notation

2.0x108

500

The accumulation of many similar variations is called

adaptations

500

What is the difference between mimicry and camouflages?

Mimicry allows an organism to imitate another organism.  

Camouflage allows an organism to blend in with its environment.

500

What determines how closely related two species are?

How recently they shared a common ancestor.