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A temporary, foot-like extension of a cell, used for locomotion or engulfing food: [blank_start]pseudopod[blank_end]
Question 2
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The region of a eukaryotic cell that contains the cell's main DNA: [blank_start]nucleus[blank_end]
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A membrane-bounded 'sac' within a cell: [blank_start]vacuole[blank_end]
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The thin, watery cytoplasm near the plasma membrane of some cells: [blank_start]ectoplasm[blank_end]
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The dense cytoplasm found in the interior of many cells: [blank_start]endoplasm[blank_end]
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A protozoan that propels itself with a flagellum: [blank_start]flagellate[blank_end]
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A firm, flexible coating outside the plasma membrane: [blank_start]pellicle[blank_end]
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An organelle containing chlorophyll for photosynthesis: [blank_start]chloroplast[blank_end]
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A pigment necessary for photosynthesis: [blank_start]chlorophyll[blank_end]
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A light-sensitive region in certain protozoa: [blank_start]eyespot[blank_end]
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A close relationship between two or more species where at least one benefits: [blank_start]symbiosis[blank_end]
Question 12
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A relationship between two or more organisms of different species where all benefit from the association: [blank_start]mutualism[blank_end]
Question 13
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A relationship between two organisms of different species where one benefits and the other is neither harmed nor benefited: [blank_start]commensalism[blank_end]
Question 14
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Hairlike projections that extend from the plasma membrane and are used for locomotion: [blank_start]cilia[blank_end]
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A reproductive cell with a hard, protective coating: [blank_start]spore[blank_end]
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Tiny organisms that float in the water: [blank_start]plankton[blank_end]
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Tiny floating organisms that are either small animals or protozoa: [blank_start]zooplankton[blank_end]
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Tiny floating photosynthetic organisms, primarily algae: [blank_start]phytoplankton[blank_end]
Question 19
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The body of a plant-like organism that is not divided into leaves, roots, or stems: [blank_start]thallus[blank_end]
Question 20
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A relationship between two organisms of different species where one benefits and the other is harmed: [blank_start]parasitism[blank_end]
Question 21
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A substance (made of sugars) that is common in the cell walls of many organisms: [blank_start]cellulose[blank_end]
Question 22
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A special structure used by an organism to anchor itself: [blank_start]holdfast[blank_end]
Question 23
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A colony that uses holdfasts to anchor itself to an object: [blank_start]sessile colony[blank_end]