B1 Quiz

Question 1

what is the level of hierarchy?

Answer 1

indivudal, population, community and ecosystem

Question 2

what are the 4 parts to the soil

Answer 2

litter(upper layer) - partially decomposed leaves and grass
topsoil( under litter)- small particles of rock mixed with decaying plant an danimal matter called humus
subsoil- under topsoil- more rock particles with other small amounts of organic matter
bedrock (beneath soil ) composed of rocks

Question 3

4 factors affecting terrestrial ecosystem

Answer 3

• soil
• avaaible water- determined by perciptation, duration it stays in soil and how much is collected beneath soil
  temp (migration and hibernation)
  sunlight- vary between and within ecosystems

Question 5

4 factors affecting aquatic ecosystems

Answer 5

chemical enviornment- amount of dissovled chemicals and oxygen
temp/ sunlight- affected by depth of water
water pressure- water is dense and hard to move through deeper water pressure increases
seasonal variations

Question 6

seasonal variations in water

Answer 6

most dense at 4 degrees then colder becomes less dense
winter- ice and snow covers acts as insulatoprs, enviornment under is very stable
spring- oxygen now passes into water
summer- upper level of lakes warms up

Question 7

what is the littoral zone in lakes/ponds

Answer 7

edges of ponds and lakes, shallow warm water
lots of rooted aqautic plants

Question 8

what is the limnetic zone in lakes/ponds

Answer 8

open water, extends to area where light cannot reach
numerous consumers/ plants
very biologically active

Question 9

what is the profundal zone in lakes/ponds

Answer 9

not found in ponds
no light no photosyntheis
possibly some chemosynthesis
low o2 levels

Question 10

what is the benthos zone in lakes/ponds

Answer 10

all bodies of water possess this
bottom of lakes and ponds

Question 11

abiotic limmiting factors (7)

Answer 11

• temp
  -percipitaion/ humidty
  -length of growing season
• amount of sunlight
  -availibility of water
• availbility of nutrients and soil
• amount of oxygen

Question 12

biotic limmiitng factors

Answer 12

• comp for resources
• parasites
  -predation

Question 13

species

Answer 13

group of organisms that can interbredd and produce fertile offspring

Question 14

habitat

Answer 14

enviornment in which a species normally lives of the location of a living organism

Question 15

population

Answer 15

group of organisms of the same species who live in the same area at the same time

Question 16

community

Answer 16

group of populations of different species living and interacting with each other

Question 17

ecosystem

Answer 17

community interacting with abiotic enviornemnt

Question 18

ecology

Answer 18

study of relashionships between living organisms and between organisms and their enviornment

Question 19

what are the 3 domains of life

Answer 19

bacteria: unicelluar, lack membrane bound nucleaus, reproduce asexually
archaea; unicelluar, lack membrane bound nucleas, asexual reproduction, lives in extreme enviornements
eukarya: unicelluar to multicelluar organisms, membrane bound nucleas, sexual reproduction

Question 20

what is the organization of species from broadest to most specific

Answer 20

domain
kingdom
phylum
class
order
family
genus
species

Question 21

rule for bionomial nomenculture

Answer 21

genus is capitalized
species is not
whole name is underlined or italized if typing