What is the reproductive organ of angiosperms?
A. Flowers
B. Cones
C. Fruits
D. Seeds
Answer: A
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The urine of marine mammals is ____ when compared to ____
a. hypoosmotic; seawater
b. hypoosmotic; their body fluids c. hyperosmotic; seawater d. isoosmotic; their body fluids e. isoosmotic; seawater
A chemical reaction in which polymers are synthesized from their building blocks is called:a
hydrolysis. b. condensation. c. oxidation. d. reduction. e. dissociation
Nutritional mutants in Neurospora can be "cured" by treating the medium with substances in the defective metabolic pathway. What determines whether the mutant strain (auxotroph) is "cured" by a particular substance?
What will be an ideal response?
Which of the following secretions is NOT found in the duodenum?
a. pancreatic fat digesting enzymes b. bile c. gastrin d. bicarbonate e. pancreatic protein digesting enzymes