With almost no exceptions, the nitrogen fixers are
A. green plants.
B. insects.
C. beans.
D. mammals.
E. prokaryotes.
Answer: E
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Photosynthesis must provide a source of electrons and H+ because ____
a. atmospheric CO2 must be oxidized by adding electrons b. CO2 must be reduced to produce sugars c. hydrogen atoms are added to oxygen to form water d. hydrogen ions and electrons react to produce hydrogen gas e. hydrogen ions and electrons are converted into oxygen gas
An individual with the Huntington's allele will always pass the allele on to their children
a. True b. False
What is the scientific information collected from well-designed experiments that should allow researchers to either reject or support a hypothesis?
What will be an ideal response?
A typical asteroid has an orbital period around the Sun of 5.2 years. How far from the Sun is this asteroid?
a. 5.2 AU b. 10.4 AU c. 27.0 AU d. 3.0 AU e. 2.3 AU