Question

sample of analytical questions for exam 1

1. where are you most likely to find archaea?

(a). salty lake and hot springs
(b). a local stream
(c). soil in your backyard
(d). the scum of an aquarium
(e). the palm of your hand

1. all of the following are associated with algae except:

(a). they are capable of photosynthesis
(b). they provide most of the oxygen on earth.
(c). the group includes seaweeds that are used to make the solidifying agent agar
(d). they are important in the degradation of dead plants and animals.
(e). they are all eukaryotes

Explanation:

1. Archaea are often found in extreme environments such as salty lakes and hot - springs. These are called extremophiles. Other options are not typical habitats for archaea.
2. Algae are photosynthetic organisms, contribute to Earth's oxygen, some are used to make agar, and are eukaryotes. Bacteria are mainly responsible for the degradation of dead plants and animals, not algae.

Answer:

1. A. salty lake and hot springs
2. D. they are important in the degradation of dead plants and animals