intertidal marine inverts

Question 1

define a diurnal tide

Answer 1

1 high and 1 low tide per day. rises and falls at dawn and dusk

Question 2

define semidiurnal tide

Answer 2

2 low and 2 high tides per day

Question 3

define mixed tide

Answer 3

combination of diurnal and semidiurnal. will vary from day to day and is based on differing abiotic factors

Question 4

how are intertidal zones layered

Answer 4

horizontally in strips of indicator species

Question 5

what abiotic factors affect the distribution of these species?

Answer 5

water chemistry, rock formation, exposure to weather and wave action

Question 6

what biotic factors can affect zonal distribution?

Answer 6

competition and predation

Question 7

how is patchiness beneficial to intertidal organisms? reference succession

Answer 7

it provides space for other organisms to move in and colonies, the process of succession begins

Question 8

why must tidal pool organisms be tolerant to environmental changes

Answer 8

with no water supply for much of the day, evaporation changes the water chemistry drastically