Zoology

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What is evolution?

A change in species over time.
How many named animals;organisms?
- 1 million named Animals
- 1.5 million named Organisms
What is meant by Teleological?

Goal oriented; selecting for certain charecteristics
What are the two mechanisms of change?
- Aritificial Selection
- Natural Selection
Which is Teleological? Artificial or Natural Selection?

Artificial Selection
In Natural Selection the ____ is the selectiong agent for specific ______.
- Environment
- Charecteristics
A _____ is something that has been tested so many times, few scientists will test is valadity.

Theory
True or False:
Evolution and Natural Selection are the same things.

FALSE
_____ do not evolve, only populations.

Individuals
A _____ ______ is an actual change in the charecterisitic of genes

Genetic Change
A genetic change is a change in _____ frequency.

Allele
A(n) ____ is different types of the same gene.

Allele
What are the 3 mechanisms that change Allele frequency?
- Mutation
- Migration
- Genetic Drift
______ is the change in a structure of genes.

Mutation
Mutations can be harmful, neutral, or beneficial. Which one is the most frequent?

Harmful
True or False:
Mutation is always random.

True
_____ is the gene flow of a population.

Migration
What is the difference between a change in Allele frequency and a new allele arising?

Change in allele only changes the individual where source of a new allele gies species variation.
________ are random chnages in allele frequency due to chance processes.

Genetic Drift
_____ and ______ mishaps are not related to gene type.

Death and Reproductive Mishaps
What are the two special cases of genetic drift?
- Population Bottlenecks
- Founder Effect

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Anonymous

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Card Set

Zoology

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Study Guide

Updated

2010-02-13T18:11:06Z

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