oceanography ch. 15
Which of the following are among the first organisms to colonize a rocky shore?
Rock weed
The common annelid found in a sandy beach environment is the ________.
lugworm
Under ideal conditions, the giant brown bladder kelp can grow up to two ________ per day.
feet
The most important members of hydrothermal vent biocommunities are microscopic ________.
Archaea
Which of the following factors does not limit coral growth?
High sediment load in the water
Which of the following sediment-covered shores represents the lowest-energy environment?
Mud flats
Stinging cells and camouflage are adaptations to cope with which of the following adverse conditions of the rocky intertidal zone?
Predators
Which of the following protects itself with stinging needlelike cells called nematocysts?
Sea Anemones
The most successful adaptation for living on a sediment-covered shore is ________.
burrowing into the sediment
Zooxanthellae are autotrophic marine protists that are found in the living tissues of some simple marine invertebrates such as corals, sea anemones, and jellyfish. Zooxanthellae are ________.
dinoflagellates
Some organisms living in the high water portion of the intertidal zone cannot survive in the supralittoral zone because they ________.
have planktonic larval forms
The loss of color (coral bleaching) in coral reef organisms can be a result of ________.
loss of zooxanthellae
Organisms that live in the spaces between sediment particles are called ________.
meiofauna
The relationship between the protistan zooxanthellae and the polyps of reef-building corals is best described as a/an ________.
mutualistic symbiosis
The distribution of benthic biomass is related to ________.
primary productivity
The most important limiting factor in rocky intertidal communities is ________.
space
The intertidal zonation of sediment-covered shores is best developed on a ________ sloping, ________-sand beach.
steeply; coarse
The three varieties of seeps on the seafloor include hypersaline, hydrocarbon, and ________.
subduction zone seeps
Primary producers in hydrothermal vent communities are ________.
sulfur-oxidizing archaea
