Unit 9 (EOC/SMA)

This diagram shows a Paramecium, a unicellular protist. When a chemical is added to the pond water in which the Paramecium lives, the Paramecium stops moving. Which structure is most likely affected?

• 1
• 2
• 3
• 4

Which statement best explains why animals are considered heterotrophic? (2.1.2)

• They are able to produce food through the process of photosynthesis.
• They are able to produce food through the process of respiration.
• They are able to obtain nutrients by decomposing plant and animal tissue.
• They are able to obtain nutrients by consuming other organisms or their products.

Which adaptation do ferns, gymnosperms, and angiosperms have that mosses do not have? (2.1.2)

• chloroplasts
• flowers
• stomata
• vascular tissue

What is the basis for the earliest classification system of organisms? (3.5.1)

• physical characteristics
• differences in habitat
• evolutionary relationships
• reproductive patterns

Some scientists claim recent evidence suggests birds should be reclassified to share more taxonomic groups with dinosaurs. What type of evidence would provide the best support for this claim? (3.5.1)

• evidence showing birds shared similar habitats with dinosaurs
• evidence showing birds shared similar nutritional requirements as dinosaurs
• evidence showing birds shared similar behaviors with dinosaurs
• evidence showing birds shared a common genetic history with dinosaurs

Multicellular eukaryotic autotrophs belong to which kingdom? (3.5.2)

• Animalia
• Fungi
• Plantae
• Protista

This is a dichotomous key for selected arthropods. To which order does the caddis fly belong?

• Acarina
• Diptera
• Siphonaptera
• Trichoptera

A scientist conducted an experiment to determine the effect of removing the eyespot from the body of a unicellular organism, euglena. Which function of euglena would be most affected by the removal of the eyespot?

• sensitivity to light
• sensitivity to heat
• sensitivity to touch
• sensitivity to chemicals

Which function is common among cilia, flagella, and pseudopodia?

• feeding
• locomotion
• reproduction
• respiration

The euglena is a unicellular protist that moves quickly in its freshwater habitats. What structure, indicated by the letter X in this diagram, does the euglena use for its mobility?

• cilia
• flagella
• pseudopodia
• reticula