Which of the following illustrates how the lymphatic system integrates with the endocrine system?
A) secretion of thymosins from the thymus gland
B) effects of pyrogens on the hypothalamus
C) secretion of histamine and heparin from mast cells
D) formation of pus during inflammation
E) presence of IgA in glandular secretions
A) secretion of thymosins from the thymus gland
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Which of the following is the correct sequence of events for muscle contractions?
What will be an ideal response? A) motor neuron action potential, neurotransmitter release, muscle cell action potential, release of calcium ions from SR, ATP-driven power stroke, sliding of myofilaments B) neurotransmitter release, muscle cell action potential, motor neuron action potential, release of calcium ions from SR, sliding of myofilaments, ATP-driven power stroke C) muscle cell action potential, neurotransmitter release, ATP-driven power stroke, calcium ion release from SR, sliding of myofilaments D) neurotransmitter release, motor neuron action potential, muscle cell action potential, release of calcium ions from SR, ATP-driven power stroke
Removing a sample of the fluid surrounding the fetus for the purpose of studying the chromosomes is a procedure called ________
Fill in the blanks with correct word
Growth hormone directly influences both IGF-I and IGF-II production
a. True b. False Indicate whether the statement is true or false
Crossing over is important for ________.
A. increasing genetic variability B. limiting genetic recombination C. preventing mutations D. maintaining chromosome structure