Which structure is common to both prokaryotic and eukaryotic cells?
A) Nucleus
B) Ribosomes
C) Chloroplasts
D) Mitochondria
Answer: B) Ribosomes
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Indicate whether each statement is true or false and then provide the explanation for why the statements are either true or false. Signaling molecules are always secreted from the signaling cell
What will be an ideal response?
The ____ are the primary photosynthetic organisms of marine plankton
a. apicomplexans b. diatoms c. dinoflagellates d. parasitic ciliates e. free-living ciliates
Identify the correct pathway for signal flow between neurons in the vertebrate nervous system
a. stimulus, sensory neurons, interneurons, motor neurons, effectors b. effectors, sensory neurons, interneurons, motor neurons, stimulus c. sensory neurons, stimulus, interneurons, motor neurons, effectors d. motor neurons, interneurons, stimulus, sensory neurons, effectors e. motor neurons, sensory neurons, stimulus, interneurons, , effectors
Boxes 1 and 2 of the figure most likely represent different
A. species.
B. clones.
C. gene pools.
D. communities.