new

Question 1

Bacteria that use bacteriochlorophyll don’t _ because _

Answer 1

Release oxygen in to the atmosphere

they use an alternative electron donor

Question 2

photoautotrophs

Answer 2

get energy from the sun. carbon from carbon dioxide

Question 3

photoheterotrophs

Answer 3

get energy from the sun but obtain carbon from organic compounds

Question 4

chemolithotrophs

Answer 4

use energy from inorganic compounds in order to fix carbon from carbon dioxide

Question 5

chemoheterotrophs

Answer 5

get energy and carbon from organic compounds synthesized by other organisms

Question 6

monophletic

Answer 6

all the species descended from an ancestor

Question 7

paraphyletic

Answer 7

some but not all of the species descended from an ancestor

Question 8

Secondary endosymbiosis

Answer 8

A eukaryotic cell engulfs another eukaryotic cell

Question 9

Primary endosymbiosis

Answer 9

A cell engulfs a bacterium

Question 10

The steps preceding the appearance of the eukaryotic cell

Answer 10

development of cytoskeleton
digestive vacuoles
ribosome studded internal membranes

Question 11

Why was the loss of a cell wall advantageous?

Answer 11

Flexibility allowed for infolds in the mmembrane in order to increase surface area, which is required for gas nutrient exhange as cell scales in volume

Question 12

what do contractile vacuoles do?

Answer 12

Excrete excess water

Question 13

what to digestive vacuoles do?

Answer 13

engulf solid food by endocytosis

Question 14

what structure allows for many different means of locomotion?

Answer 14

the cytoskeleton

Question 15

what type of motion do protists move by?

Answer 15

amoeboid

Question 16

Protists that survive through photosynthesis are

Answer 16

algae

Question 17

protists that ingest other species are

Answer 17

protozoans

Question 18

why does looking at single genes not provide accurate phylogenetic trees

Answer 18

complicated because of lateral gene transfer

Question 19

which genes are uncomplcicated by lateral gene transfer?

Answer 19

stable core genes

Question 20

sequencing of what molecules provided comprehensive evidence of evol relationships among prokaryotes

Answer 20

ribosomal RNA

Question 21

what do nitrogen fixer cells do

Answer 21

convert atmospheric nitrogen in to chemical compounds like ammonia

Question 22

denitrifiers

Answer 22

release nitrogen gas in to the atmosphere

Question 23

nitrifiers

Answer 23

convert ammonia in to nitrate, using it as an electron carrier to power its processes

Question 24

5th of the world carbon fixation comes from

Answer 24

diatoms, phytoplankton

Question 25

dinoflagellates are _ living _

Answer 25

endosymbionts

within cells like those in coral

Question 26

radiolarians are an example of a cell _

Answer 26

containing photosynthetic endosymbionts

Question 27

which pathogen is associated with malaria

Answer 27

plasmodium

Question 28

what is the source of natural gas and petroleum

Answer 28

dead diatoms that have sunk to the ocean floor

Question 29

In paramecia, the micronucelei is used for

Answer 29

transcription and translation

Question 30

In paramecia, the micronucelei is used for

Answer 30

gene recombination

Question 31

during conjugation, each ecell obtains a new

Answer 31

micronuclei, which is fused with nother in to a macronucelus

Question 32

conjugation is a _ process but not a _ process

Answer 32

sexual

reproductive

Question 33

a life cyclewith haploid and diploid stages is

Answer 33

alternation of generartions

Question 34

heteromorphic alternation of generations

Answer 34

each generation looks similar

Question 35

sporophyte is a _

Answer 35

diploid

Question 36

gametophyte is a _

Answer 36

haploid

Question 37

isogamous -

Answer 37

gametes of identical appearance

Question 38

haplontic life cycle

Answer 38

all stages are haploidic except for zygote

Question 39

diplontic life cycle

Answer 39

all stages are diplontic excet for gametes