Which of the following statements is true about general senses?
A) They are distributed all over the body.
B) They are all mechanoreceptors.
C) All receptors involved in general sensation consist of free nerve endings.
D) They are located in sense organs.
E) The reception of the stimulus occurs slowly with these receptors.
A
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Which of the following is NOT a contribution of the cardiovascular system to other body systems?
a) Blood delivers clotting factors and WBCs that aid in hemostasis when skin is damaged. b) Blood delivers calcium and phosphate ions that are needed for building bone extracellular matrix. c) Blood carries carbon dioxide to body tissues and removes oxygen for use by other organs. d) Blood carries newly absorbed nutrients and water to the liver. e) Blood circulates cells and chemicals that carry out immune functions.
Genotype is ________
A) an individual's actual genetic makeup B) the manner in which a particular trait is expressed C) the expression of sex chromosomes in an individual D) the diploid number of chromosomes in an individual
Which type of skin cancer is the most common?
A. Malignant melanoma B. Basal cell carcinoma C. Squamous cell carcinoma D. Malignant carcinoma
Out of the 200 million ejaculated sperm, only about ________ reach the vicinity of the egg.
A. 20,000 B. 2000 C. 2 D. 200 E. 20