Define seasonal polyestrus
What will be an ideal response?
Continuation of estrous cycle until pregnancy during only certain times of the year.
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The striations in striated muscle correspond with actual molecular structures. Which of the following is the Z disk?
A) a band where only actin myofilaments are found B) a band where only myosin myofilaments are found C) an attachment point for actin myofilaments D) an attachment point for myosin myofilaments
After you measure TV and vital capacity, you must also calculate ________ before you can determine total lung capacity
A) inspiratory volume B) residual volume C) inspiratory capacity D) expiratory reserve volume
EPSPs (excitatory postsynaptic potentials) occur when
A) more potassium ions than usual leak out of a cell. B) more calcium ions than usual leak out of a cell. C) chloride ions enter a cell. D) extra sodium ions enter a cell. E) hyperpolarizations occur.
The major components of the lymphatic system include the __________.
a. thoracic duct, right lymphatic duct, and lymph nodes b. spleen, thymus, and tonsils c. lymph nodes, lymph, and lymphocytes d. lymphatic vessels, lymph, and lymphatic organs