Which of the following represents a negative effect of protists in the marine environment? (choose all that apply) Zooxanthellae living in tissues of corals and providing glucose from photosynthesis Diatoms producing the neurotoxin domic acid which accumulates in food chain Xcellidae protists causing disease in marine fish Cyanobacteria causing a harmful algal bloom in an estuary Photosynthetic diatoms serving as food source for filter feeders Dinoflagellate Karenia brevis causing red tide blooms in Gulf of Mexico Which of the following statements are true regarding halophytic plants? (choose all that apply) Are a monophyletic group with a single common ancestor Are true flowering plants and produce pollen and seeds Have adaptations for osmoregulation in saline environments Can only grow in intertidal habitats Are one of the most abundant groups in plant kingdom Can grow in intertidal and subtidal environments Which adaptation seen in mangroves is an adaptation for improved reproductive success in marine environments? Production of large number of wind-dispersed seeds Aboveground root structures such as prop roots and pneumatophores Production of buoyant propagules Salt glands on leaves to excrete excess salts Thick succulent leaves with waxy coating Why are halophytic grasses in salt marshes considered pioneer species? Acts as a primary producer and produces high amounts of detritus for food web Removes all of the nutrients from the soil to slow recruitment of other species Changes in physical environment for future recruitment and growth of other plants Increases quickly in cover and outcompetes other organisms.

1. Which of the following represents a negative effect of protists in the marine environment?
(choose all that apply) Zooxanthellae living in tissues of corals and providing glucose from
photosynthesis Diatoms producing the neurotoxin domic acid which accumulates in food chain
Xcellidae protists causing disease in marine fish Cyanobacteria causing a harmful algal bloom in
an estuary Photosynthetic diatoms serving as food source for filter feeders Dinoflagellate
Karenia brevis causing red tide blooms in Gulf of Mexico Which of the following statements are
true regarding halophytic plants? (choose all that apply) Are a monophyletic group with a single
common ancestor Are true flowering plants and produce pollen and seeds Have adaptations for
osmoregulation in saline environments Can only grow in intertidal habitats Are one of the most
abundant groups in plant kingdom Can grow in intertidal and subtidal environments Which
adaptation seen in mangroves is an adaptation for improved reproductive success in marine
environments? Production of large number of wind-dispersed seeds Aboveground root structures
such as prop roots and pneumatophores Production of buoyant propagules Salt glands on leaves
to excrete excess salts Thick succulent leaves with waxy coating Why are halophytic grasses in
salt marshes considered pioneer species? Acts as a primary producer and produces high amounts
of detritus for food web Removes all of the nutrients from the soil to slow recruitment of other
species Changes in physical environment for future recruitment and growth of other plants
Increases quickly in cover and outcompetes other organisms