BIO 14 LEC - Evolution (definitions)

Question 1

3 main definitions of evolution

Answer 1

1. Descent with modification (Darwinian Evolution)
2. Process of change in populations through time
3. Process of change in the genetic structure of a population through time

Question 2

DARWINIAN EVOLUTION

____ population -> _____ population

• 2 aspects?

Answer 2

ancestral population -> descendant population

1. UNITY - possess common trait present in descendants
2. DIVERSITY - possess altered/modified traits

Question 3

PROCESS OF CHANGE IN POPULATION

• 6 types

Answer 3

1. morphological
2. physiological
3. biochemical
4. behavioral
5. ecological
6. genetic

Question 4

CHANGE IN POPULATION - MORPHOLOGICAL

change in the external ___, ____, or ____ of an organism

Answer 4

• shape
• size
• structure
• changes in the external structure of an organism

Question 5

CHANGE IN POPULATION - PHYSIOLOGICAL

• changes in how an organism’s body _____, ____ ____, or ____ ____
• often related to ___ and ____

Answer 5

• functions, internal process, or immune response
• survival and metabolism

Question 6

CHANGE IN POPULATION - BIOCHEMICAL

• changes ____ processes at the ____ level, such as (3)

Answer 6

• chemical
• molecular

1. metabolism
2. enzyme production
3. chemical defense

Question 7

CHANGE IN POPULATION - BEHAVIOURAL

• changes in how an organisms ___ or ___ with its ___
• makes a ____ behaviour
• such as…. (3)

Answer 7

• acts or interacts with its environment
• learned

1. migration
2. mating and feeding habits
3. hunting strategies

Question 8

CHANGE IN POPULATION - ECOLOGICAL

• changes in how an organism ____ with their _____
• more ____ term compared to behavioural

Answer 8

• interact
• ecosystem
• long

Question 9

CHANGE IN POPULATION - GENETIC CHANGES

• changes in _____ ___ that are inherited across _____
• more on ___ caused by ____ or more on _____ ____

Answer 9

• genetic material
• generations
• diseases/abilities
• mutations
• genetic adaptation

Question 10

PROCESS OF CHANGE IN GENETIC STRUCTURE

• 5 aspects

Answer 10

• Gene — basic unit of heredity
• Alleles — alternate forms of a gene
• Gene frequency — proportion of alleles in a population
• Genotype frequency — proportion of genotypes in the population
• Evolutionary change — changes in gene frequency.

Question 11

behavioural vs ecological

Answer 11

behavioural is more individual behaviour and short term

ecological is adapted by almost the entire species and more long term