Cnidarians all share the ability to
A. fly.
B. live on land.
C. sting predators and prey.
D. photosynthesize.
E. secrete enzymes to digest food.
C. sting predators and prey.
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Which is incorrect about photosynthesis?
A. The light reactions take place in the cytoplasm and the light-independent reactions occur in the chloroplast. B. The light-independent reactions don't require light but can occur in its presence. C. Photosystems act as antenna to capture photons. D. The light-dependent reactions release oxygen. E. The light-dependent reactions produce NADPH and ATP.
During an action potential, sodium ions
A. rush out of the cell, switching the potential to +35 mV. B. rush into the cell, switching the potential to ?70 mV. C. rush into the cell, switching the potential to +35 mV. D. rush out of the cell, switching the potential to ?70 mV. E. rapidly move in and out of different parts of the neuron, oscillating potential between ?50 and +35 mV.
The experiments that clearly distinguished DNA and not protein as the hereditary material were conducted by _____
a. Pauling b. Hershey and Chase c. Griffith d. Watson and Crick e. Avery
Diffusion of morphogens influences the differential expression of other genes such as __________, which govern the formation of specific body parts.
Fill in the blank(s) with the appropriate word(s).