You could find ______ in sewage treatment plants.

halophiles

thermophiles

mesophiles

all of the above

QUESTION 13

Which of the following do NOT use glycerol-based phospholipids as part of their cell membranes?

archaea

eukarya

bacteria

none of the above

QUESTION 14

Many of the ancient ______ bacteria lived in colonial associations known as stromatolites.

phototrophic

heterotrophic

both a and b

none of the above

QUESTION 15

Which of the following describes mutualism?

Both species benefit.

One species benefits, while the other is unaffected.

One species benefits, while the other is harmed.

none of the above

QUESTION 16

The proposed kingdom Euglenozoa includes ______ with one or two flagella emerging from an anterior pocket.

plants

protists

fungi

none of the above

QUESTION 17

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

Ciliates

Plants

Birds

none of the above

QUESTION 18

Euglenoid ______ resemble those of blue-green algae.

chloroplasts

cell walls

embryos

none of the above