What is a unifying feature of animals?
A. They have immobile gametes.
B. They have similar small subunit rRNA gene sequences.
C. They are unicellular.
D. They have a cell wall made of cellulose.
E. They are terrestrial or secondarily aquatic.
Answer: B
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Which one of the following directly interacts with the DNA as a transcriptional regulator?
A. cAMP B. G protein C. Protein kinase A D. CREB protein dimer E. Glucocorticoid response element
Green Bacteria Phototrophy
What will be an ideal response?
Understanding the abiotic microenvironment of a community is not very informative when studying the microbial populations in that environment.
Answer the following statement true (T) or false (F)
Natural selection drives evolution through the following forces except
A. competition for food. B. predators. C. climate. D. reproduction. E. competition for mates.