lab

Question 1

inheritance of alleles that support survival and reproduction and are passed on

Answer 1

natural selection

Question 2

a geologist who provided evidence that the earth was > 6000 years old

Answer 2

charles lyell

Question 3

rock layers formed by accumulation and consolidation of sand or mud

Answer 3

sedimentary rock

Question 4

a change in the frequency of a specific allele in a population over time

Answer 4

evolution

Question 5

a scientist who proposed a theory of natural selection after voyages on the beagle

Answer 5

charles darwin

Question 6

the amount of time it takes for one half of an isotope sample to decay

Answer 6

half life

Question 7

evidence of dead plants and animals that can help to date the age of rock layers

Answer 7

fossil record

Question 8

the tendency of a bacterial strain to outlast the effectiveness of a drug

Answer 8

antibiotic resistance

Question 9

if a sediment layer is thicker it usually indicates a shorter geologic period

Answer 9

false

Question 10

layer closest to surface is oldest

Answer 10

false

Question 11

what tongue-like organ does a snail use to graze on algae

Answer 11

radula

Question 12

the space between the exoskeleton and gills allows

Answer 12

respiration

Question 13

a fishes gill cover is called

Answer 13

operculum

Question 14

the ability of an ecosystem to cope with and recover from damage

Answer 14

resilence

Question 15

tropical rainforest

Answer 15

prevents melting of polar ice caps

Question 16

food webs represent

Answer 16

how energy flows through a system

Question 17

biodiversity

Answer 17

essential to ecosystem stability

Question 18

o2 production

Answer 18

ocean algae performs photosynthesis and contributes to air we breathe

Question 19

maintain global climate

Answer 19

wetlands trap enormous amount of co2 aka greenhouse gas

Question 20

disease control

Answer 20

birds eat mosquitos that carry malaria parasite

Question 21

erosion control

Answer 21

mangrove forests root systems preserve riverbanks

Question 22

nutrient cycling

Answer 22

nitrifying bacteria fix nitrogen in the soil to be used throughout the ecosystem

Question 23

waste removal

Answer 23

decomposers break down rotting and decaying matter

Question 24

deep-sea sponges may hold key for curing cancer

Answer 24

medicines

Question 25

a shared resource system where individual users act in own self-interest to maximize resource output without realizing the collective negative effect

Answer 25

tragedy of the commons

Question 26

unintended catch of non target fish

Answer 26

bycatch

Question 27

difference in traits among individuals of the same species is

Answer 27

genetic diversity

Question 28

difference in the variety of habitats that make up the biosphere

Answer 28

ecosystem diversity

Question 29

habitat loss will result in a

Answer 29

decrease of biodiversity

Question 30

a system of protected parks will most likely result in a

Answer 30

increase of biodiversity

Question 31

beneficial results from successful ecosystem interactions are

Answer 31

ecosystem services

Question 32

what are the two body forms in the phylum cnidaria

Answer 32

polyp and medusa

Question 33

what is the cellular makeup of phyla

Answer 33

multicellular

Question 34

which organism does not belong to the phylum cnidaria

Answer 34

saltwater flatworms

Question 35

what type of support system is observed in the phylum annelida

Answer 35

hydrostatic skeleton

Question 36

what term describes an organism that consumes other organisms for energy

Answer 36

heterotrophic

Question 37

pathway of water movement in phylum porifera

Answer 37

in through osculum, out through pores

Question 38

cnidarians have a

Answer 38

sac like gut

Question 39

the body form of the platyhelminthes allows for

Answer 39

directional movement

Question 40

annelids have a complete

Answer 40

digestive track