In an exchange reaction, covalent bonds are broken and new covalent bonds are formed.
Answer the following statement true (T) or false (F)
True
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What are the two layers of the embryonic disc?
A. Mesoderm and endoderm B. Cytotrophoblast and syncytiotrophoblast C. Epiblast and hypoblast D. Mesoderm and ectoderm E. Myotome and dermatome
The substance in muscle fiber cytoplasm that directly powers muscle contraction is ___________.
A) ATP. B) glucose. C) fatty acids. D) phosphocreatine.
The neuron that receives neurotransmitters from another neuron is called:
A) an oligodendrocyte. B) a Schwann cell. C) the presynaptic neuron. D) the postsynaptic neuron.
Our sense of static equilibrium is created by the ________
A) vibration of the tympanic membrane B) movement of otoliths along hair cells C) transmission of light through the lens D) sound waves traveling through the cochlea E) stimulation of hair cells in the spiral organ of Corti