____________ is the scientific study of the search for life on other worlds and the likelihood that life exists elsewhere
Fill in the blank(s) with correct word
Astrobiology
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Which of the following statements about blood pressure is false?
a. Systolic pressure occurs when ventricles force blood into arteries b. The greater the blood volume, the higher the blood pressure is. c. The body has blood pressure receptors in the jugular vein and in the superior vena cava. d. Diastolic pressure occurs when ventricles are relaxed.
In plants, the secondary metabolites are primarily responsible for
a. nutrition. b. food gathering. c. overcoming air pollutants. d. defense. e. protection against ultraviolet radiation.
Which of the following statements is TRUE?
a. Once a person reaches maturity, cell division stops except to repair wounds. b. Cell division in an adult signifies cancer. c. Some specific cells throughout the body retain the ability to divide and replace themselves. d. Mitosis always produces haploid cells. e. All cells retain the ability to divide even after the organism reaches maturity.
About ____ percent of children with Down syndrome are severely intellectually disabled
a. five b. ten c. twenty-five d. thirty e. forty