evolution Flashcards
1
Q
biological evolution
A
- theory that living things diverged from shared ancestors
- universe has history
- change over time has occurred
2
Q
development
A
- physical changes that occur during lifetime
- result of growth/aging
3
Q
non-inheritable changes
A
- cosmetic alterations
- scars
- memory
4
Q
adaptation types
A
- help organism survive and reproduce
- structural, behavioural, physiological
5
Q
structural adaptations
A
- feature of organism/s body that aids survival and reproduction
6
Q
behavioural adaptations
A
- part of learning process to survive/live comfortably
- memory is non-inheritable, so must be educated
7
Q
physiological adaptations
A
- body process that aids survival/reproduction
8
Q
how do adaptations start
A
mutations
9
Q
mutations
A
- creates new versions of genes/alleles and thus new genetic info
- direct impact on organism and influences later generations if inherited
- produce heritable changes called “derived traits”
10
Q
evolutionary change
A
- when inheritable traits of a species population are different
- random mutation that is a favourable trait and is passed down
- occurrence increases in population
11
Q
types of mutations
A
- harmful: decreases reproductive success
- neutral: no benefit/harm
- beneficial: increases reproductive success (gives advantage)
12
Q
evolutionary adaptation
A
- when mutation is favoured by the environment
- can be harmful/neutral/beneficial
