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Flashcards in Chapter 5 Deck (14)
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1

Adaptation

changes in physical structure, function, and behaviour that allows organisms to better survive and reproduce in an environment

2

What are the types of adaptation?

Genetic: biological changes that are inherited and non-reversible and determined by natural selection
Developmental: occurs at individual level during period of growth
Functional: provides a functional advantage and occur during lifetime
Acclimatization: occurs at the individual level anytime (reversible)

3

Bergmans rule

shorter bodies for cold and taller for warm

4

Allens rule

shorter limbs for cold and longer for warm

5

Vasodilation

increase in blood vessel diameter

6

Hypoxia

reduced amount of oxygen in the body or tissues

7

Cline

a gradual change in a phenotypic characteristic from one generation to the next

8

Monogenism vs Polygenism

all humans descended from one common ancestor or 2 or more ancestral types

9

Race

group with common origin/decent

10

Ethnic group

shared or common cultural background

11

Systema Natura

Linnaeus classification of the natural world
Europaeus, americanas, asiaticus, africanus

12

Cephalic index

ratio of head length to width

13

Biological determinism

belief that biology dictated intelligence, morals, behaviour, etc...

14

Essentialism

idea that groups have an essential underlying feature