Refer to the accompanying figure. What is the function of the structure labeled as 8?
a. digestion
b. respiration
c. circulation
d. movement
e. reproduction
d
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Independent assortment means that _____
A. monohybrid crosses will show segregation and independent assortment B. the segregation of one gene pair depends on the segregation of another gene pair C. the gametes produced must be heterozygous in all cases D. the segregation of one gene pair occurs as if no other gene pair was present E. the phenotypic ratio in F2 will be the same for dihybrid and monohybrid crosses
During gas exchange in the lungs, ________ diffuses from the alveoli into the bloodstream capillaries, and ________ diffuses from the bloodstream capillaries into the alveoli
Fill in the blank(s) with correct word
Which of the following will tend to produce adaptive changes in populations?
A) genetic drift B) gene flow C) natural selection D) the founder effect
Your roommate is experiencing heartburn and asks you to purchase her an antacid. Chemically speaking, how do you know that the antacid will help eliminate her pain?
A) It has a low pH to balance the acidity in her digestive tract. B) It is a buffer and will prevent the pH in her digestive tract from changing. C) It is probably high in H+. D) It has a higher OH- concentration to increase the pH in her digestive tract.