Decapod crustaceans (shrimps, lobsters, and crabs) all lack
A. a carapace, a dorsal cephalothorax shield.
B. a ventral line of appendages, swimmerets.
C. a tail spine, telson.
D. chelicerae.
D. chelicerae.
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Given that these two gene loci are very closely linked, the phenotypic ratio in the F2 generation should be closest to
A. 1 brown eye, heavy wing veins: 2 red eye, thin wing veins: 1 brown eye, thin wing veins B. 1 brown eye, thin wing veins: 2 red eye, thin wing veins: 1 red eye, heavy wing veins C. 3 red eye, thin wing veins: 1 brown eye, heavy wing veins D. 1 brown eye: 1 red eye: 1 heavy wing veins: 1 thin wing veins Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain? Gather Content · What do you already know about genetic linkage? Consider Possibilities · Consider the different answer options. Which can you rule out? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
During which developmental stage is the human body plan set and organ formation occurs?
a. zygote b. blastocyst c. embryo d. fetus e. infant
Most humans need about ________ kcal per day
A) 500-700 B) 1,300-1,800 C) 2,500-3,000 D) 20,000-30,000
Which two drugs are in the same category?
A. cocaine and marijuana B. alcohol and heroin C. nicotine and alcohol D. nicotine and heroin E. marijuana and heroin