Stomach acid does not break down the wall of the stomach because gastric juice contains a powerful base that neutralizes the acid before it can cause damage
Indicate whether the statement is true or false
FALSE
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How many kilograms of biomass at the primary producer level would be required to support 20 kilograms of biomass at the tertiary consumer level?
A. 20 B. 10 C. 200 D. 2,000 E. 20,000
All living things, except bacteria and archaea, are eukaryotes
a. true b. false
The two groups representing the "jawless" fishes are:a
Cephalochordata and Placoderms. b. Chondrichthyes and Actinistia. c. Myxini and Petromyzontida. d. Dipnoi and Actinistia. e. Placoderms and Petromyzontida.
How is the chemiosmotic process shown in the figure similar to secondary active transport (cotransport) of solutes (discussed in Chapter 3)?
a. Both processes are powered by an electron transport chain, which transports ions across a membrane.
b. Both processes use an electrochemical gradient to store energy.
c. Both processes result in the synthesis of ATP.
d. Both processes typically involve H+ (proton) gradients.