PP 5 Evol, Medicine, Phenotypes Flashcards
What is an adaptation?
a trait associated with a measurable reproductive advantage
What is human adaptability?
ndividual phenotypes variable within demes as each responds to
locally experienced environmental stressors
What does natural selection promote?
Darwinian Fitness & Reproductive Success
Natural selection is not perfect for ______ or ______
health or longevity
Put these in order for biology: Genes, DNA, Organs, Molecules, Immunity, Soma, Metabolism, Physiology.
DNA to Genes to Molecules to Organs to Immunity to Metabolism to Physiology to Soma
Put these in order for culture:
Beliefs
Values
Sanitation
Tools
Behaviors
Mating
Competition
Exposures
Behaviors
Beliefs
Values
Tools
Mating
Sanitation
Exposures
Competition
Put these in order for environment:
Humidity
Nutrition
Terrain
Water
Food
Temperature
Other People
Humidity
Terrain
Temperature
Water
Food
Nutrition
Other People
Evolution is conservative meaning it
Maintains & improves phenotypic fit to current environment. New structures seldom evolve
What is Luca?
Last Universal Common Ancestor
3.5 BYA
prokaryotes to eukaryotes to primates to humans
What is MRCA?
Most Recent Common Ancestor) Apes & Humans ~ 7MYA
T/F: Natural selection happens at an individual level
True
What does gene flow do?
revents population divergence & speciation
Transfers advantageous & disadvantageous DNA between demes
What does genetic drift do?
Random fluctuations in allele frequencies – due to chance
T/F: Low iron is an evolved human defense against bacteria.
True- bacteria like high iron environments more than low
Why do we get a fever?
Our body raises our temperature to fight bacteria growth
