EXAM 1

Organisms that take energy from other organisms

Which is NOT evidence of evolution

Overtime small changes accumulate

What is the third step of the scientific method?

Bottleneck effect leaves a very low allelic diversity

“Higher fitness” refers to a high reproduction success

The “scale of nature” is based upon size, complexity, & perception of advancement

Gene flow can only occur through immigration or emigration

Natural selection is random

Change in base pairs of a gene

Darwin’s voyage visited which of these places

What is the second step of the scientific method?

What are the mechanisms of evolution

When does gene flow occur

Can lead too the formation of new species

Offspring that survive have inherited a variation that gave them advantage, relative to survival

In every generation, survival and reproductive success are highly variable

Any change in allele frequency in a population that occurs due to random change

Offspring more likely to reproduce/ survive based upon inherited traits

Very well supported explanation of data by supported of independent evidence

Organisms that produce their own energy

What was Darwins main idea centered around?

Movement of organisms= movement of alleles

Each organism represents an unchanging type

What is the fourth step of the scientific method

Observations/ data must be unbiased

Heterotrophs take energy from living things only

Mutations can be positive, negative, or neutral

Came up with same hypothesis as Darwin about natural selection

Recognized diversity… represents “perfect essence”

Movement of small number of individuals from a given population to a new pop. where they start a new pop.

Evolution has a long term purpose and direction

A general statement regarding the natural world

Individual organisms (& their alleles) are removed from the breeding population

Mutations are the ultimate cause of all genetic variation

An interpretation can use the words true or prove

Attempted to organize diversity of life… “scale of nature”

A tentative explanation of data/ observations

What was Lamarck’s main idea titled?

Organisms that can produce and take energy

A good experiment should account for most of the variables that might influence the outcome of the experiment

Individuals within populations are variable in characteristics (traits)

what is the first step of the scientific method?

How would you test for natural selection in a natural habitat?

Natural selection is goal oriented

Applying general ideas to make or produce specific results or predictions

Evolution is driven by alleles

Mutations happen spontaneous

Using specific observations or data to generate ideas

The outcome of an experiment should be repeatable

Who views variation as unimportant

Some of individuals variation is passed on to their offspring

Change in the underlying DNA that effects trait expression

Lyell wrote the “principles of geography”

Mutagens are external factors that increase mutations

A bottleneck effect leaves a small number of survivors

Darwin spent 5 years on the HMS Beagle

Change in chromosome number, change in a large part of chromosomes

Which of the following is NOT one of Darwin’s postulates?

Moth colors changing due to pollution is an example of

Observations can be based upon single or multiple events

Darwin’s theory of natural selection and evolution was not accepted at first

Well confirmed observation

what is NOT true about genes?

What is the last step in the scientific method?

Derived first hypothesis that addressed change over variation among organisms

What is the bottleneck theory

An organism that does not produce has a fitness of 0