8) Rocky intertidal habitats are colonized by what? a) mostly terrestrial organi
ID: 289835 • Letter: 8
Question
8) Rocky intertidal habitats are colonized by what? a) mostly terrestrial organisms c) more or less equal number of both b) mostly marine organisms d) no discernable pattern worldwide 9) What is the relationship between beach hoppers and kelp forests a) kelp forests eat beach hoppers b) beach hoppers eat kelp washed ashore b) beach hoppers eat kelp forests d) there is no relationship 10) Larger patches have a high probability of a) being recolonized by the surrounding organisms b) providing habitat for motile organisms c) being colonized by larvae d) remaining uninhabited 11) What are two important physical factors affecting community structure? a)wave action and drifting logs b) lack of species diversity and males e) sediments and benthic organisms d) predation and food resources 12) What method/s help kelp plants grow? a) intraspecies competition wind-induced mixing b) upwelling of deep water d) both b and cExplanation / Answer
8).
b) Mostly marine organism - Rocky intertidal habitates are colonized by the species of the intertidal sea or ocean , these habitates are the livelihood of various kinds of marine flora and fauna such as algae, bacteria etc and these habitates sometimes get exposed in open at low tides or at duration between cosecutive tides, the fauna of the intertidal zones are the main responsible for the colonization
9)
c) Beach hoppers eat kelp washed ashore = Kelp forests have their relationship with the beach hoppers connected to the land. When kelp is washed ashore it can become a valuable resource for creatures that live between the tides and some of those creatures can be food for land animals or beach hoppers
10)
a). Being recolonized by the surrounding organism
Vegetative growth of surrounding organisms adjacent to the larger patches under the water is the major reason of recoonization.Larger patches have a higher probability of being recolonized by surrounding organism such as tunicates and sponges, bryozoans.
11)
a). Wave action and drifting logs =The effects of emersion, wave-action and topography are the physical factors affecting community structure. The geographical location of any beach would tells us about the species which are avaiable to habitate it, the degree of exposure to wave action and the stresses by drifting logs, which organisms face at higher shore levels.
12)
b) Upwelling of deep water= Because the deep water brought to the surface is often rich in nutrients, coastal upwelling supports the growth of seaweed and plankton.
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