Biology homework please help me..

Posted on 2014-02-25 13:17:00 in Biology by LACIE

1. An amoeba moves by extensions of its cytoplasm, which is known as

A. cilia.

B. flagella.

C. pseudopodia.

D. none of the above



2. The proposed kingdom Euglenozoa includes protists with one or two _____ emerging from an anterior pocket.

A. cilia

B. flagella

C. cell membranes

D. all of the above



3. Amoeboids engulf their prey with

A. flagella.

B. pseudopods.

C. cilia.

D. none of the above



4. Ciliates are ______ relative to their outside solution.

A. isotonic

B. hypertonic

C. hypotonic

D. none of the above



5. The centralean diatoms have _____ symmetry and a round shape.

A. no

B. radial

C. bilateral

D. none of the above



6. Most ciliates have two

A. cilia.

B. cell walls.

C. cell membranes.

D. nuclei.



7. ______ is a symbiosis where both organisms benefit.

A. Mutualism

B. Commensalism

C. Parasitism

D. all of the above



8. Ciliates have a ______, which is a tougher membrane that allows them to change shape.

A. pellicle

B. cell wall

C. thylakoid membrane

D. none of the above



9. Organisms in the Euglenophyta are

A. autotrophic.

B. heterotrophic.

C. both a and b

D. none of the above



10. Red tides are caused by

A. paramecium.

B. ciliates.

C. dinoflagellates.

D. none of the above



11. According to fossil evidence, the evolution of eukaryotic cells occurred about _____ years ago.

A. 3.2 to 6.1 million

B. 250 to 500 million

C. 1.2 to 1.5 billion

D. 3.5 to 3.8 billion



12. Which of the following kingdoms is NOT part of the Eukarya domain?

A. Protista

B. Animalia

C. Plantae

D. none of the above



13. Euglenoid chloroplasts resemble those of

A. blue-green algae.

B. yeast.

C. ferns.

D. none of the above



14. Most dinoflagellates have _____ flagella.

A. one

B. two

C. three

D. several



15. Red tides release _____ into the ocean.

A. nutrients

B. carbon dioxide

C. oxygen

D. toxins

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