bio CAT 1
3.8(10)
Studied by 80 people
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt PlayCard Sorting
1/24
Last updated 9:07 AM on 11/18/22
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai |
|---|
No analytics yet
Send a link to your students to track their progress
25 Terms
1
New cards
Intra-specific variation
variation between the same species
2
New cards
inter-specific variation
variation between different species
3
New cards
causes of variation
genetic and environmental
4
New cards
first step in evolution by natural selection
a random mutation occurs
5
New cards
second step in evolution by natural selection
the organisms with the mutations are better suited to their environments
6
New cards
third step in evolution by natural selection
this would increase their chance in survival
7
New cards
fourth step in evolution by natural selection
giving them more opportunities to reproduce
8
New cards
fifth step in evolution by natural selection
and pass their successful genes to their offspring
9
New cards
sixth step in evolution by natural selection
overtime, beneficial characteristics become more common and the species evolve
10
New cards
mutation
change in the DNA sequence of a gene
11
New cards
variation
a different version of something
12
New cards
environment
your surroundings where you operate
13
New cards
survival
the state of continuing to exist
14
New cards
reproduce
production of offspring
15
New cards
genes
a part of a DNA sequence
16
New cards
evolution
change in characteristics of a species over time
17
New cards
natural selection
survival and reproduction of species
18
New cards
allopatric speciation
new species arrive because of geographic isolation, forcing the species to evolve differently from each other
19
New cards
sympatric speciation
new species arrive because of reproductive isolation, meaning certain animals just dont want to reproduce with each other
20
New cards
first step in the process of speciation
a population becomes separated
21
New cards
second step in the process of speciation
the two areas are different from each other, different food, different terrain, different predators
22
New cards
third step in the process of speciation
in the two new areas the desirable characteristics are now different
23
New cards
fourth step in the process of speciation
a random mutation occurs in one population which gives them an advantage in the new area
24
New cards
fifth step in the process of speciation
the organisms with the new mutation now outcompete others in their species, and reproduce to pass the characteristics to their offspring
25
New cards
sixth step in the process of speciation
if this happens enough times, the two populations would not be able to reproduce and create fertile offspring. They are different species
