A series of interconnected bones that form the backbone of all mammals, fishes, reptiles, and birds is the ________
A) mandible
B) scapula
C) femur
D) vertebral column
D
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One of the most common physical ailments is
a. encephalitis. b. meningitis. c. headache. d. seizure disorders. e. paralysis.
The bivalves started to die one by one; only the undamaged shells remained. To keep the remaining bivalves alive, the teacher would most likely need to remove the _____
A) sea anemones B) sea star C) gastropods D) ectoprocts
What causes the annual rings we see in the wood of trees?
What will be an ideal response?
Secondary metabolites are organic compounds produced outside of primary metabolic processes essential for cell structure and growth. Based on this information, which of the following is an example of a secondary metabolite?
A. steroids B. glucose C. lipids D. proteins E. RNA