A baby is born with spina bifida, which is a neural tube defect. This problem most likely initiated at which time in development?
A) late in the fetal period B) the pre-embryonic period
C) the embryonic period D) early in the fetal period
Answer: C
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A ___ is a chemical that is released by one animal that affects the physiology and or behavior of another member of the same species.
A) neurotransmitter B) neurochemical C) hormone D) pheromone
Microscopically, this fungus appears barrel shaped with thick walls, which best describes which type of conidia?
a. Macroconidia b. Chlamydoconidia c. Arthroconidia d. Blastoconidia
Enzymes that alter another protein or enzyme's activity by attaching a phosphate group are called:a
kinases. b. phosphatases. c. phospators. d. transcription factors. e. coenzymes.
Which metabolic process is most closely associated with intracellular membranes?
A) substrate-level phosphorylation B) oxidative phosphorylation C) glycolysis D) the citric acid cycle E) alcohol fermentation