The term used to describe an appendage structure that is closest to its point of attachment to the trunk is:
a. distal
b. lateral
c. superior
d. proximal
d. proximal
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Which outer layer of the blastocyst forms part of the placenta?
A. Trophoblast B. Embryoblast C. Yolk sac D. Amnion E. Blastocoel
Steroids, proteins, and nucleic acids are the three classes of hormones.
Answer the following statement true (T) or false (F)
The function of the protein, dystrophin, is to:
a. Anchor actin filaments to the plasma membrane b. Conduct an action potential to the sarcoplasmic reticulum c. Form regular arrays of actin filaments within the I-band d. Regulate the binding of myosin to actin e. Transport calcium into t-tubules
Which of the following hormones is most likely to bind to intracellular receptors?
A. Insulin, a large peptide hormone B. Growth hormone (GH), a complex protein C. Aldosterone, a cholesterol-based hormone