Rocky shores Flashcards
1
Q
Everything in intertidal zone? (in order)
A
Littorina upper balanoid mean tidal level lower balanoid cochlear
2
Q
Highest zone?
A
Super tidal zone- permanently above water
3
Q
Lowest zone?
A
Sub tidal zone- permanently under water
4
Q
Stresses in Littorina Zone?
A
- heat
- desiccation
5
Q
Adaptations in Littorina Zone?
A
- mucous layer on rock to protect from heat
- shell to protect desiccation
- once dry out, reabsorb water rapidly
6
Q
Stresses in Upper Balanoid Zone?
A
- heat
- desiccation
7
Q
Adaptations in Upper Balanoid Zone?
A
- mucous lining/ foot on top of rock to protect from heat
- shell to protect from desiccation
8
Q
Stresses in Lower Balanoid Zone?
A
- wave action
- changes in salinity in rock pools
- sand inundation
9
Q
Adaptations in Lower Balanoid Zone?
A
- cement onto rock by use of mucous, crevices or threads
- mobile chloroplast to photosynthesize when in sand inundation
- Low flat shell to reduce water drag when wave action
10
Q
Stresses in Cochlear Zone?
A
wave action
11
Q
Adaptations in Cochlear Zone?
A
- low flat shell to reduce water drag
- muscular foot to suction onto rock
12
Q
the two tides and which zones they affect?
A
spring tide- intertidal zone
neap tide- upper and lower balanoid zone
