Many products and services were initially developed for space exploration. Which of these does NOT have a direct connection to space exploration? A. X-ray machine B. freeze-dried food C. infrared ear thermometer D. portable cordless vacuum

Which of the choices below is NOT a way in which carbon dioxide is transported in the blood A. It enters red blood cells and forms carbonic acid B. it dissolves in the blood plasma C. it bind to hemoglobin and proteins in plasms D.

Where does the transfer of excess water and urea from the circulatory system to the excretory system take place? A. between the heart and the ureters B. between the veins and the urethra C. between the arteries and the bladder D.

What molecule carries genetic form?

What advantages are given to animals and plants by asexual reproduction? They can reproduce in tropical climates They can reproduce in harsh climates They produce genetically identical offspring They offer much genetic variance They reproduce at a

Does the Doppler shift occur for only some types of waves or for all types of waves? only sound waves all types of waves only light waves

The function of a chromosome is to A. provide structural support. B. transport cellular wastes. C. produce cellular energy. D. store genetic material. Which of the following is true about genes? A.

Minerals that do not have weak bonds along specific planes will A. streak B. luster C. cleave D. fracture

In industrialized nations, childhood diseases have declined dramatically during the past half-century, largely as a result of

How does normal gene expression differ from epigenetic effects on the genome?

Why is a virus considered to be nonliving (info provided in text of reading) ?