In a neuron, the opening of sodium gates typically leads to ________.
A. depolarization of the plasma membrane
B. plasma membrane voltage returning to the resting membrane potential
C. drifting of plasma membrane voltage toward a more negative value
D. hyperpolarization of the plasma membrane
E. repolarization of the plasma membrane
Answer: A
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The control of calcitonin excretion is an example of direct ________ regulation
A) endocrine B) pancreatic C) homeostatic D) hepatic E) vascular
Select the correct statement about fertilization
A) If estrogen is present, the pathway through the cervical opening is blocked from sperm entry. B) Both spermatozoa and the ovulated secondary oocyte remain viable for about 72 hours in the female reproductive tract. C) Once inside the uterus, most sperm cells are protected and remain viable. D) Millions of sperm cells are destroyed by the vagina's acidic environment.
Read the description of the human resources activity performed by each HR professional then match it to the appropriate Society of Human Resources Management (SHRM) success competency.
HRM Practices
Human resources management is critical to the success of organizations as human capital becomes an important source for competitive advantage. With the changing role of the HR professional to a strategic partner, the Society of Human Resources has defined the sets of knowledge and skills associated with success. Today is it not enough for an HR professional to know only how to perform tasks specific to human resources management. HR professionals must be proficient in the nine categories of HR success competencies clustered into four areas: technical, interpersonal, business, and leadership.
Parathyroid hormone acts on the proximal convoluted tubule to inhibit _________________ reabsorption and on the distal convoluted tubule to increase __________________ reabsorption.
a) calcium, phosphate b) sodium, phosphate c) calcium, sodium d) phosphate, calcium