The concentration of calcium in a cell is 0.3%. The concentration of calcium in the surrounding fluid is 0.1%. How could the cell obtain more calcium?

A. passive transport
B. diffusion
C. osmosis
D. active transport


D. active transport

Biology & Microbiology

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The concentration of CO2 in the atmosphere is lower than its concentration in the oceans

Indicate whether the statement is true or false

Biology & Microbiology

What has been the general trend of the world's catch usage? a. Increased fishmeal production

b. Decreased fishmeal production. c. Increased human consumption. d. None of these choices.

Biology & Microbiology

Predict what would happen if a mutation created a bacterium in the light organ of the squid that cannot produce bioluminescence?

A. Light producing bacteria out-compete non light producers B. The two populations establish a 50:50 equilibrium C. Non-light producing bacteria out-compete light producers D. Squidnado

Biology & Microbiology

In the ocean, ________ are present in the highest numbers

a. algae b. viruses c. Archaea d. bacteria

Biology & Microbiology