Which factor is the most important algal contribution
to the fungal component of a lichen?
a. improved water conservation
b. mechanical protection
c. photosynthetically derived food
d. conversion of nitrogen gas to nitrates
e. pigment for camouflage
Answer: c
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Shitake mushrooms are decomposers that break down biological molecules from dead organisms
These organisms belong to the ____ kingdom.
a. Plantae b. Fungi c. Animalia d. “Protist” e. Bacteria
Which component becomes oxidized in the following chemical reaction?
4 Fe + 3 O2 ? 2 Fe2O3 a. water b. iron c. oxygen d. rust e. hydrogen
Which of the following statements about water is false?
A) Ice is denser than liquid water. B) Water naturally exists in all three physical states on Earth. C) Floating ice on a pond insulates the liquid water below, slowing its rate of freezing. D) If ice sank, the oceans would eventually freeze solid.
Macrophages release (bradykinin/histamine/prostaglandin) in response to microbes and thereby contribute to acute inflammation
What will be an ideal response?