Exam 13: Early Life Forms and the Viruses

Classification.Answer the questions using the five groups of prokaryotes listed below. a.halophiles b.cyanobacteria c.thermophiles d.bacteria e.methanogens -These have parasitic members.

What is a plant's main line of defense against viral infection?

According to scientific evidence,early life could NOT form or persist in the presence of

Which of the following obtain energy from light and carbon from organic sources?

____ must have been the first eukaryotic cells.

Which of the following elements may have been the ancestors of cellular life?

Which of the following is an HIV enzyme essential for its successful replication in a host cell?

Which of the following forms of Plasmodium infects human red blood cells?

Which of the following protists may cause dysentery after drinking contaminated water?

The planets of our solar system were formed by the collisions of ____.

Which of the following elements is (are)likely to provide hints about earth's early atmosphere?

Classification.Answer the questions using the five groups of protistans listed below. a.apicomplexans b.amoebas c.euglenoids d.dinoflagellates e.trypanosomes -These possess an eyespot for detecting light needed for photosynthesis.

Which of the following viral components is NOT typical of a plant virus?

Which of the following statements is true of foraminiferans?

Classification.Answer the questions using the five groups of protistans listed below. a.apicomplexans b.amoebas c.euglenoids d.dinoflagellates e.trypanosomes -These have no cell wall,shell,or constrictive pellicle to prevent a change in shape.

Four of the five answers listed below are bacteria structures.Select the EXCEPTION.

Which of the following allow the bacteria to join together to transfer genes?

The process by which bacteria evolved into mitochondria is most closely related to

Match the following letters with the number with which they best correspond. a.protist b.prokaryote c.photoautotroph d.pathogen e.protocell f.halophile g.antibiotic -cell with no membrane bound nucleus

Classification.Answer the questions using the five groups of prokaryotes listed below. a.halophiles b.cyanobacteria c.thermophiles d.bacteria e.methanogens -These produce methane.