Final Staar Biology Practice

Which is true of prokaryotic and eukaryotic cells?

• Prokaryotic cells are larger than eukaryotic cells.

• Eukaryotic cells do not have nuclei, and prokaryotic cells do have nuclei.

• Prokaryotic cells lack membrane-bound organelles, and eukaryotic cells contain membrane-bound organelles.

• Eukaryotic cells are simpler than prokaryotic cells.

Name the phase

• metaphase
• Anaphase
• Telophase
• Prophase

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DNA is replicated during the ______ phase of the cell cycle.

• G₁
• Synthesis
• G₂
• G₀

DNA molecule segment is : TTACGCAAG
The mutated DNA segment is TTCGCAAG. This is an example of ___ mutation.

• Substitution
• Deletion
• Insertion
• Inversion

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Cattle egrets forage (feed) in fields among cattle. The egret gets easy access to flying insects stirred up by the cattle, and the cattle don't care if they are there or not.

• mutualism
• commensalism
• competition
• parasitism

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Red-billed oxpeckers are birds that often feed on parasites that infest impala.  This is an example of _______.

• commensalism
• mutualism
• neutralism
• competition

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The reactants of photosynthesis are

• sugar and water.
• sugar and oxygen.
• carbon dioxide and water.
• carbon dioxide and oxygen.

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What occurs after a disturbance that leaves soil intact?

• primary succession
• secondary succession
• pioneer species
• climax community

How can you tell that Zebra Mussles are an invasive species from the graph shown?

• The population of rotifers goes up after zebra mussels they are introduced.
• The population of rotifers goes down after zebra mussels are introduced.
• The population of rotifers stays about the same after zebra mussels are introduced.
• The population of zebra mussels goes down after they are introduced.

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What are the offspring's possible phenotypes?

Brown fur is dominant. White fur is recessive.

One parent is homozygous for brown fur as the other is heterozygous.

• 100% White fur

• 50% Brown fur 50% White fur

• 100% Brown fur

• 75% Brow fur 25% White fur

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