What are the four functions of the skeletal system?
What will be an ideal response?
Answer: Movement by joints, support and protection, and blood cell formation.
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Which organism would likely harbor the MOST two-component regulatory systems?
A) an archaeon living in an extreme environment B) a bacterium occupying a heterogeneous niche will high nutrient mixing C) an organism capable of quorum sensing D) a parasitic bacterium living inside another organism
Which enzyme links nucleotides into a new stand of DNA?
a. DNA ligase b. DNA mutase c. DNA polymerase d. DNA primer e. DNA replicase
__________ can be used to estimate the population density for mobile animals. Fill in the blank(s) with the appropriate word(s)
In biology, an evolutionary innovation is also referred to as a
a. derived character b. taxonomic group c. molecular clock d. physical similarity