Some protists consist of a single cell with multiple nuclei. This condition is known as:
a. alternation of generations.
b. multicellular.
c. coenocytic.
d. mycelium.
e. colonial
c
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The double helix model of DNA structure was proposed by
A. Watson and Crick. B. Griffith. C. Avery. D. Franklin. E. Chargaff.
Carbon dioxide that dissolves into the ocean forms ________ acid
Fill in the blank(s) with correct word
How does the scanning electron microscope differ from the transmission electron microscope?
a. The SEM can view a live specimen. b. The SEM can view the internal structure of a cell. c. The SEM utilizes a beam of light that passes through the specimen. d. The SEM gives a three dimensional image of the object being studied. e. The SEM relies on the detection of electrons from the beam after contact with the specimens.
All the mass of an atom is considered to be in the:
A) protons and neutrons. B) electrons only. C) protons, neutrons, and electrons. D) protons only.