Evolution & Nat. Selction Science 7

1.

1 point

Gradualism as a speed of evolution can be described as:

a snails pace that rarely leads to change

a continuous series of mutations and variations over time that will result in a new species.

rapid evolution that occurs when the mutation of a few genes results in the appearance of a new species over a relatively short time.

2.

1 point

Natural Selection can be described as:

all organisms have an equal chance of survival no matter what the circumstances.

an organism with the best traits for their environment is more likely to survive and reproduce

mother nature is cruel to all animals.

3.

1 point

Geographic isolation can lead to new species over time since:

being isolated will surely lead to extinction

the isolation is usually overcome to mix groups together

geographically isolated groups of species can no longer mix their genes by reproduction

4.

1 point

Punctuated equilibrium as a speed of evolution can be described as:

rapid evolution that occurs when the mutation of a few genes results in the appearance of a new species over a relatively short time.

a continuous series of mutations and variations over time that will result in a new species.

too fast to notice relationships between new and old species

5.

1 point

Evolution is defined as:

change in population number over time

change in inherited characteristics over time

change that can be seen only in the fossil record

6.

1 point

As the science of heredity, genetics (the study of inheritance) was not described until the 1800's by:

Darwin

Lamarck

Mendel

7.

1 point

Adaptations can be described as:

variations that make an organism better suited to its environment

variations that neither help nor harm an individual

variations that cause an organism to be eaten more often

8.

1 point

"Survival of the fittest" means that:

only the strong survive, but do not have to reproduce

organisms with good variations that are helpful will survive and reproduce to pass on those good variations.

only strong individuals should have the right to mate

9.

1 point

A shining example of Lamarck's ideas about evolution is:

finches born with certain variations survived and passed those favorable variations on to their offspring

species changing continuously over time due to mutation and survival of the fittest

giraffes stretching necks out of need to reach branches led to longer necks

10.

1 point

Lamarck was a French scientist who proposed that traits:

were selected by nature and the best ones survived

were not inherited

developed during a partent's lifetime would be passed on to their kids

11.

1 point

An example of mimicry we discussed is:

a flounder blending in to the ocean bottom

a rattlesnake (toxic) looks like a king cobra (really toxic)

the viceroy butterfly (non-toxic) looks like a monarch butterfly (toxic)

12.

1 point

Charles Darwin was a British naturalist who sailed aboard the HMS Beagle in the 1800's. One important stop he made was on the Galopagos islands off the coast of:

North America

South America

Africa

13.

1 point

A few examples of adapations we discussed are:

cactus spines, camouflage and bright (warning) coloration

venom, albino coloration, short necks

deformed feet, slow mobility and lack of intelligence

14.

1 point

Mimicry is an idea where:

one animal jokes about another to its animal friends

a less dangerous animal imitates a more dangerous one

an animal cries to get food

15.

1 point

Before the 1800's, few people thought much about evolution because:

evolution was not devoloped by Darwin until the 1900's

people were too busy trying to make a living

most people thought the Earth was only 6,000 years old