Evolution and Adaptations

Question 1

popolations are the smallest unit to evolve

Answer 1

adapt

Question 2

cause of variation in genotype

Answer 2

mutation
recombination
random fusion of gametes

Question 3

gene pool

Answer 3

all genetic info in a population

the certain allele in a population

Question 4

hardy weinberg

Answer 4

allele stay on the se population

Question 5

precambarian era

Answer 5

counts for about 87% of earths history

Question 6

palezois era

Answer 6

• many more typed of plants and
• animals appeared on earth
• enourmous increase the diversity of life forms
• consists of marine and land plansts and animals

Question 7

mesozoic era

Answer 7

divided into three periods

• triassic
• jurassic
• cretaceous

mostly complex organisms like reptiles

Question 8

triassic period

Answer 8

mammals first appeared ( small mouse like )
dinosaurs appeared (reptiles)

Question 9

jurassic period

Answer 9

age of dinosaurs

and modern birds evolved

Question 10

cretaceous

Answer 10

new types of mammals and first flower plant boomed

Question 11

cenozoic era

Answer 11

primated firat appeared; mammals began to flourish during era

fossils of mammals become common

Question 12

Alexander Oparin

Answer 12

hypthesizzed that life began in earths ocean

Question 13

fossils

Answer 13

trace or remains of a plant or animal that lived long ago

Question 14

geologic colomn

Answer 14

represents the timeline in earths history

Question 15

natural selection

Answer 15

• organisms adapt to environment due to inherited variations in traits
• changes in environment affect organisms
• those who can’t adapt become extinct

Question 16

theory of evolution

Answer 16

the process of change over time

Question 17

Charles Darwin

Answer 17

father of evolution

proposed a mechanism for evolution, natural selection

wrote a book “ orgin os the species “

Question 18

Darwins four step

Answer 18

overproduction
variation
competition
and selection

Question 19

1. Overproduction

Answer 19

each species produces more offspring that can survive

Question 20

2. Variation

Answer 20

each individual has a unique combinationof of heritated traits

Question 21

3. Competition

Answer 21

individuals compete for limited resources

Question 22

4. Selection

Answer 22

the individual with the best trait/adaptations will survive and have oppertunity to pass on its traits to offspring

Question 23

evidence for evolution

Answer 23

fossil records
homologous boy structure
vestigital organs
embryology 
and biochemical evidence

Question 24

theory

Answer 24

a hypothsis, facts, and laws

Question 25

radioactive dating

Answer 25

radioactove isotope are used to date fossils

Question 26

classification (taxonomy)

Answer 26

the areangment of organisms into orderly groups based on their similarities

Question 27

carlous linnaeus

Answer 27

developed the naming system for animals

Question 28

standard naming

Answer 28

bionomial nomeclature
genus species
latin or greek

Question 29

hierarch ( taxomony groups )

Answer 29

domain ( dumb ) with nucleu
kingsom ( king ) multicellular 
phylum  ( phillip ) doral supporting 
class ( came ) hairy, mammal glands
order ( over ) climb trees
family ( for ) walk erect
genus (gooseberry )large brain
species (soup )body proportion

Question 30

dichotomous keys

Answer 30

used to identify organisms with cahracteristics given in pairs

Question 31

animal adaptation

Answer 31

the certain adaptations that help organisms survive

Question 32

physical adaptations

Answer 32

are body structures that allow an animal to find and consume food, defend itself , and reproduce its species

camoflauge, mimichry, and chemical defense

Question 33

behavioral adaptations

Answer 33

the actions that animals respond to, to stay alive

instinctive or learned

Question 34

cladogram

Answer 34

the common ancestor at root of the tree

Question 35

clade

Answer 35

a group of organisms that come from a moke recent ancestor