Bio Exam 3

Question 1

Can endure high and low temperatures

Answer 1

Hadobacteria

Question 2

Heat lovers

Answer 2

Hyperthermophiles

Question 3

Produce Endospores, have low GC:AT ratio

Answer 3

Firmicutes

Question 4

Their membrane is ether-linked and branched, they do not have membrane-bound organalles

Answer 4

Archaea

Question 5

Their cell walls contain peptidoglycan, the initiator tRNA is formylmethionine

Answer 5

Bacteria

Question 6

High GC:AT ratio, gram positive

Answer 6

Actinobacteria

Question 7

Make chlorophyll a, photosynthetic lamellae

Answer 7

Cyanobacteria

Question 8

Gram negative, axial filaments

Answer 8

Spirochetes

Question 9

Obligate parasites, they have a complex life cycle with 2 stages

Answer 9

Chlamydias

Question 10

Origin of mitochondria, important nitrogen fixers, gram-negative

Answer 10

Proteobacteria

Question 11

An area classified according to the species that live in that location.

Answer 11

Biome

Question 12

Most individuals survive to old age

Answer 12

Type 1 Survivorship Curve

Question 13

Individuals face a constant risk of mortality at all ages.

Answer 13

Type 2 Survivorship Curve

Question 14

Most individuals die young.

Answer 14

Type 3 Survivorship Curve

Question 15

Tolerate unpredictable conditions, typically semelparity, shot life span, density-independent, type 3 survivorship curve.

Answer 15

R-Strategist

Question 16

Thrive in predictable environments, iteroparity, long life span, density-dependent mortality, type 1 or 2 survivorship curve.

Answer 16

K-Strategist

Question 17

Reproduce once in their lifetime

Answer 17

Semelparity

Question 18

Reproduce multiple times in their lifetime

Answer 18

Iteroparity

Question 19

Groups of species that coexist and interact in an area

Answer 19

Ecological Community

Question 20

Where a species COULD live

Answer 20

Fundamental Niche

Question 21

Where a species DOES live

Answer 21

Realized Niche

Question 22

Play a strong role in structuring a community by virtue of there large size and abundance, providing food and habitat for other species

Answer 22

Foundation Species

Question 23

Have large effects despite their relatively small size and abundance

Answer 23

Keystone Species

Question 24

Create, modify, or maintain physical habitat for themselves and other species

Answer 24

Ecosystem Engineering Species

Question 25

The process by which the mix of species and habitat in the area change over time

Answer 25

Ecological Succession

Question 26

Upwelling Slows/stops, definition of upwelling, less nutrients = less biomass, less biomass = more competition near shore

Answer 26

El Nino Effects

Question 27

They include some species that live in environments with extreme slainity and low oxygen, they lack a nucleaus, and contain rRNA

Answer 27

Bacteria and Archaea

Question 28

One species directly interferes with another species' access to a limiting resource

Answer 28

Interference Competition

Question 29

One species is more efficient in using a resource than another

Answer 29

Exploitation Competition

Question 30

+/+

Answer 30

Mutualism-both positive

Question 31

-/-

Answer 31

Competition

Question 32

+/-

Answer 32

Predation/Parasitism

Question 33

0/-

Answer 33

Amensalism

Question 34

The majority of biomass is tied up in wood, so its energy is not available to most herivores

Answer 34

Forest Ecosystem

Question 35

Most of the biomass is found in plants, but more energy is available to herbivores than in forests

Answer 35

Grassland Ecosystem

Question 36

The primary producers are phytoplankton, which reproduce so rapidly that a small standing biomass can support a much larger biomass of herbivores

Answer 36

Open Ocean Ecosystem

Question 37

Energy source = Light Carbon source = Carbon dioxide

Answer 37

Photoautotrophs

Question 38

Energy source = Light Carbon source = Organic compounds

Answer 38

Photoheterotrophs

Question 39

Energy source = Oxidation of inorganic substances Carbon source = Carbon dioxide

Answer 39

Chemoautotrophs

Question 40

Energy source = (in)organic compounds Carbon source = Organic compounds

Answer 40

Chemoheterotrophs