The functional group -NH2 is called the ________ group.
A) methyl
B) alcohol
C) amino
D) carboxyl
Ans: C) amino
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You have discovered a new coccoid-shaped microorganism with no nucleus, a rigid cell wall, and a diameter of 2 µm. Chemical tests reveal that its cell wall does NOT contain peptidoglycan. The new microorganism is
A) most likely a bacterium. B) most likely a eukaryote. C) most likely an archaeon. D) either a bacterium or an archaeon.
__________ is the functional replacement for the epidermis
a. Xylem b. Periderm c. Pith d. Cortex e. Periderm
________-driven promoters are comprised of an Inr sequence and a TATA box with or without an associated BRE
Fill in the blank with correct word.
What do echinoderms and chordates have in common?
A. endoskeletons B. protostome development C. ecdysis D. dorsal nerve cords