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ligers are a cross between lions and tigers. they exist only in zoos because lions and tigers do not live together in the wild.

which is a reason why lions and tigers are considered separate species?

a. lions and tigers do not look alike.

b. ligers cannot reproduce. ( yes, i mean ligers not tigers )

c. lions and tigers cannot reproduce.

d. ligers are found only in zoos. ( yes, i mean ligers not tigers )

Identify and describe the three ways that mutations affect organisms.

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

Phosphoric acid is a triprotic acid ( =6.9×10−3 , =6.2×10−8 , and =4.8×10−13 ). to find the ph of a buffer composed of h2po−4(aq) and hpo2−4(aq) , which p value should be used in the henderson–hasselbalch equation? p k a1 = 2.16 p k a2 = 7.21 p k a3 = 12.32 calculate the ph of a buffer solution obtained by dissolving 18.0 18.0 g of kh2po4(s) kh 2 po 4 ( s ) and 33.0 33.0 g of na2hpo4(s) na 2 hpo 4 ( s ) in water and then diluting to 1.00 l.