Natural / artificial selection review

the process by which organisms that are best adapted to their environment are most likely to survive and reproduce.

• adaptation

• natural selection

• niche

• competition

an inherited behavior or physical characteristic that helps an organism survive and reproduce in its environment.

• adaptation

• natural selection

• niche

• competition

the struggle between organisms to survive as they attempt to use the same limited resources in the same place at the same time.

• adaptation

• natural selection

• niche

• competition

A dichotomous key for trees is provided. Hikers found a tree that has large brown cones and single sharp needles. What species of tree have the hikers found?

• Juniper
• Pine
• Spruce
• Fir

An illustration and a dichotomous key are given. What is the correct classification for this organism?

• Class Insecta
• Order Amblygygi
• Order Araneae
• Order Scorpiones

Selective breeding is...

• a process to create an organism with desired traits from parents with those desired traits to benefit humans

• natural method of producing offspring with desired traits

• creating a new species

• making organisms reproduce during times of stress

An example of selective breeding is

• a dog breeder mating 2 dogs to make more dogs

• a farmer grows bees to pollinate the plants on his farm

• a person pollinates 2 white rose plants to only create white roses

Evidence shows that the wolf is the ancestor to all of the breeds of dogs shown below. How did this variation arise in a relatively short period of time?

• A.  Genetic manipulation
• Natural selection
• Random chance
• Selective breeding

Which is NOT a result of selective breeding?

• Large seedless watermelons that consumer demand

• Bright oranges that are all about the same size

• An insect that matches the color of the environment

• A dog that has been bred to have short hair

What does the term Generation mean?

• the time between when an organism is born and when they reproduce

• a living individual that can carry out life processes.

• a total of all biotic (living) and abiotic (non-living) things.

• A change in the DNA sequence.