In the Hardy-Weinberg equation, p2 + 2pq + q2 = 1, 2pq represents the frequency of
A. homozygous dominant and heterozygous individuals.
B. homozygous dominant individuals.
C. homozygous recessive individuals.
D. heterozygous individuals.
E. homozygous recessive and heterozygous individuals.
D. heterozygous individuals.
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Strolling in the Sonoran Desert, you come upon a stately Saguaro cactus. The large central "trunks" of this cactus are covered with numerous smaller spines
The central stalks are modified _________ used for water storage and spines are modified ______ used for protection. A) stems; leaves B) leaves; leaves C) petioles; leaf blades D) leaf blades; trichomes E) stems; fruits
Anammox is represented by which of the following equations?
A. NH4+ + 2H2O NO2- + 4H2 B. N2 + 2H2O NH4+ + NO2- C. NH4+ + NO2- N2 + 2H2O D. NO2- + 4H2 NH4+ + 2H2O E. 2H2O + 2NO3- 2NH2- + 4O2
Five hundred minnows consume 1000 kilograms of algae over a four-month period. Five bass consume these 500 minnows over a period of two weeks. Louisa catches and eats the bass. How much of the original 1000 kilograms of algae would you expect to become the biomass of Louisa?
a. 1 b. 10 c. 100 d. 1000 e. 10,000
What does the fact that all organisms use essentially the same genetic code suggest about the origin of life?
What will be an ideal response?