AICE MARINE UNIT 7 EXAM
QUESTIONS AND ANSWERS GRADED A+
2025/2026
What is the only saltwater tolerant tree? - ANS Mangrove
Where are mangroves located? - ANS Tropical and subtropical places around the world
protist - ANS Kingdom composed of eukaryotes that are not classified as plants, animals, or
fungi
protists can be _________________ - ANS unicellular, colonial, multicellular
protists are all _______________ - ANS aerobic
marine phytoplankton can be classified by what????????????? - ANS size
plankton - ANS microscopic free-floating organisms
how well do plankton swim? - ANS poorly
1 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
, zooplankton - ANS consumer plankton
phytoplankton - ANS Microscopic, free-floating, autotrophic organisms that function as
producers in aquatic ecosystems
where are phytoplankton found? - ANS surface water
into how many groups are plankton organized? - ANS three
diatom - ANS A type of microscopic plantlike protist with a hard outer wall, most efficient and
best photosynthetic organism
what is the cell wall of diatoms made of? - ANS silica
silica has the characteristics of what? - ANS glass
frustule - ANS the silicified cell wall of a diatom, consisting of two valves or overlapping
halves.
what is the energy conversion rate of a diatom? - ANS 55%
what absorbs the excess O2 of diatoms? - ANS they are absorbed by marine animals,
incorporated into bottom sediments, and diffused into the atmosphere
xanthophyll - ANS a organelle that contains energy such as fatty acids and oil
2 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
QUESTIONS AND ANSWERS GRADED A+
2025/2026
What is the only saltwater tolerant tree? - ANS Mangrove
Where are mangroves located? - ANS Tropical and subtropical places around the world
protist - ANS Kingdom composed of eukaryotes that are not classified as plants, animals, or
fungi
protists can be _________________ - ANS unicellular, colonial, multicellular
protists are all _______________ - ANS aerobic
marine phytoplankton can be classified by what????????????? - ANS size
plankton - ANS microscopic free-floating organisms
how well do plankton swim? - ANS poorly
1 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
, zooplankton - ANS consumer plankton
phytoplankton - ANS Microscopic, free-floating, autotrophic organisms that function as
producers in aquatic ecosystems
where are phytoplankton found? - ANS surface water
into how many groups are plankton organized? - ANS three
diatom - ANS A type of microscopic plantlike protist with a hard outer wall, most efficient and
best photosynthetic organism
what is the cell wall of diatoms made of? - ANS silica
silica has the characteristics of what? - ANS glass
frustule - ANS the silicified cell wall of a diatom, consisting of two valves or overlapping
halves.
what is the energy conversion rate of a diatom? - ANS 55%
what absorbs the excess O2 of diatoms? - ANS they are absorbed by marine animals,
incorporated into bottom sediments, and diffused into the atmosphere
xanthophyll - ANS a organelle that contains energy such as fatty acids and oil
2 @COPYRIGHT 2026 ALLRIGHTS RESERVED.