In the electron transport system, hydrogen ultimately combines with
A. carbohydrates.
B. phosphate.
C. oxygen.
D. water.
C. oxygen.
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What dangerous fungus has been recently found in soft coral tissues?
a. Aspergillosis b. Penecillium c. Yeast d. Bracket fungi
Four of the five answers are characteristics of diatoms. Select the exception
a. two-part silica shells b. photosynthetic c. some produce a toxin that accumulates in fish, crabs, and shellfish d. flagella e. live in lakes, seas, and damp soils
The atomic number refers to the
a. mass of an atom. b. number of protons in an atom. c. number of both protons and neutrons in an atom. d. number of neutrons in an atom. e. number of electrons in an atom.
Which of the following is a function of the plasma membrane?
A) regulate the traffic of chemicals in and out of the cell B) regulate the production of lipids in the cell C) regulate the production of DNA in and out of the nucleus D) regulate the production of proteins in the cell