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21.5 Supergroups Amoebozoa and Opisthokonta -- Part 2
Some protists may be multicellular or exist in colonies.
Protists exhibit asexual reproduction in favorable environmental conditions.
Large, complex brown seaweeds are economically important.
The golden brown algae has an outer layer of silica.
Water molds produce diploid zoospores, but not flagellated ones.
The parasites are nonmotile.
The test results of foraminiferans and radiolarians can be used as fossils on the ocean floor.
Euglenids have a pellicle instead of a cell wall.
Chagas disease and African sleeping sickness are caused by parasites that are transmitted by the bite of an insect.
Amoeboids move and feed on each other.
They have an amoeboid stage.
Pick the best answer for the question.
Mitochondria in protists came from a different type ofbacteria.
Usually reproduce sexually.
A move by pseudopods.
rhizarians form skeletons and can be used to date fossils.
Protists with deep oral grooves are known as excavates.
The amoeboid vegetative state of plamodial and cellular _____ is important.
Roughly half of the photosynthesis on Earth is performed by protists in the oceans.
A new anti-termite chemical will not harm the environment.
If they can't digest wood, they will starve.
Some protist species cause diseases that are difficult to treat and can be deadly.
unrelated species evolve similar adaptations to their environment through convergent evolution.
Birds and bats have evolved their ability to fly on their own.
Parasitism is an example of protists.
The ability to parasitize human hosts has been evolved by certain apicomplexans in the excavata supergroup.
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