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Flashcards in Evolution Deck (34)
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1

how do we measure evolution?

genereations

2

what is a well supported testable explanation of phenomena that have occurred in the natural world

scientific theory

3

why is growth and development not considered evolution?

they are changes that occur in an organisms lifetime

4

what ship did Darwin go on and how long was his journey?

HMS Beagle and 5 years

5

his observations on mainly the _____ _____ contributed to his hypothesis about evolution

galapagos islands

6

what were the five scientists that influenced Darwin while shaping his theories

hutton and lyell, malthus, lamarck, wallace

7

who gave evidence to earth being older than what what was thought

hutton and lyell

8

who predicted that the human population will grow faster than the space and supply needed to support

malthus

9

who thought organisms evolved in their lifetime

lamarck

10

who triggered darwin to publish his work bc he had the same idea?

wallace

11

the theory of evolution says that those who _____ better survive

adapt

12

what is variation

the slight differences of organisms in the same species that help them to survive

13

what is survival of the fittest

those individuals that have variations that are advantages are most likely going to survive

14

traits of those best suited to an _____ will increase in _____

environment
population

15

what is the development of a new species over time

speciation

16

what term means that the best adapted organisms survive and reproduce

natural selection

17

what is an example of proof for evolution?

fossils, the oldest ones are the simplest

18

embryology suggests...

vertebrate embryos are very similar which means that they all come from common ancestor

19

what are vestigial features

structures that are not used/reduced in size

20

what are homologous structures

similar structures that indicate a common ancestor

21

geographic isolation

when two populations are separated and cannot interbreed, each becomes different, new species

22

what is the % of a specific allele in a population

allelic frequency

23

what is a population that the frequency of alleles remains the same over generations

genetic equilibrium

24

all of the genes including different alleles that exist in a population

gene pool

25

what are environmental factors that change genes as well as meiosis ad mitosis

mutation

26

what is the number of times an allele occurs in the gene pool

relative frequency

27

what is a random change in allele frequency that occurs in small populations

genetic drift

28

what is genetic drift caused by

individuals entering or leaving a population

29

what is the transport of genes by migration

gene flow

30

what causes speciation to happen

geographic and reproductive isolation