Exam 13: Early Life Forms and the Viruses

Match the following letters with the number with which they best correspond. a.amoebas b.apicomplexan c.dinoflagellates d.green algae e.red algae f.bacteriophage -cause of malaria

The bacterium E.coli

Both mitochondria and chloroplasts are thought to have evolved by the process of

Scientific evidences suggest that oxygen gas appeared on earth about ____ years ago.

The most common strain of HIV evolved from _____ virus(es).

Classification.Answer the questions using the five groups of protistans listed below. a.apicomplexans b.amoebas c.euglenoids d.dinoflagellates e.trypanosomes -This group of protozoans has no locomotor organelles.

The new version of the H1N1 virus had genes from ___ flu viruses.

The primitive template that was thought to be used for forming chains that resemble proteins or nucleic acids was

Examine the figure above and answer the following question(s). -In figure "A",what is being injected into the host cell?

Flagellated protozoans possess a layer of elastic proteins just beneath the plasma membrane called the

Which of the following describes the earliest protist found in the fossil record?

Genes that are exchanged between prokaryotes are contained in

Prokaryotic cells are likely to be found

Which of the following is NOT true of protists?

Which of the following is FALSE?

Which of the following components was NOT a significant part of the earth's early atmosphere?

Archaea

What evidence was used to determine that the last universal common ancestor of all life lived about 4.3 million years ago?

Four of the five answers listed below are related by a common association.Select the EXCEPTION.

What evidence suggests when oxygen gas first became a significant part of Earth's atmosphere?