Vocabulary
4 Steps of Natural Selection
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Structures
Cladograms
100

Define Clade

A group of organisms with a common ancestor

100

Adult sea turtles travel to within 100 miles of their birth location to lay their eggs every year.

Successful Reproduction

100

Are adaptations inherited or acquired?

Inherited

100

A human appendix

Vestigial

100

What Trait is shared by all of the animals?

Backbone

200

Define Adaptation

Changes that lead to an organism becoming better suited to their environment

200

Spiders use different web patterns depending on their location and species.

Inherited Variation

200

What does Fitness mean in evolutionary terms?

Having the best adaptations to survive and reproduce.

200

A cat eye and a Octopus eye

Analogous

200

What traits does the wolf have?

Carnivorous, Hair, & Backbone

300

Define Vestigial Structure

A body part that has lost its function over time.

300

Rabbits will have 2 - 3 litters of 10 babies every year.

Overproduction

300

What is the goal of Natural Selection?

To survive and reproduce to pass down beneficial adaptations.

300

A Butterfly wing and a Bird wing

Analogous

300

Which animal evolved first?

Tortoise

400

Define Trait

A genetically determined characteristic

400

Snakes have to seek out prey in a field without being noticed by their predators.

Struggle to Survive

400

Write an example of an acquired trait and an inherited trait.

Multiple answers

400

A human arm and a Bat wing

Homologous

400

What animal is the closest relative to the Leopard?

Cat

500

Define Homologous Structure

Body part with the same bone structure but different functions

500

Create your own example for each of the 4 steps of natural selection.

Multiple Answers

500

Which structure type suggests common ancestry?

Homologous

500

Define Analogous Structure

A body part with different structure but the same function.

500

Add a new animal and trait to the end of the cladogram that fits properly.

Multiple correct answers

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