Which of the following genotypes represents a human male?

a. XY
c. XX
b. YY
d. XO


a. XY

Biology & Microbiology

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A marine fish with a cold body temperature that matches its cold surroundings is an example of rev

A. negative feedback. B. regulating. C. conforming. D. conditioning.

Biology & Microbiology

A deep groove called the ___________ fissure divides the left and right cerebral hemispheres.

Fill in the blank(s) with the appropriate word(s)

Biology & Microbiology

What biome includes an environment where the plants are low to the ground and many boggy areas are found?

A) a boreal forest B) a savanna C) a tundra D) a prairie

Biology & Microbiology

A baby arrives at an emergency room suffering from violent muscles spasms and difficulty breathing. The baby's body is so rigid a proper exam is difficult, but the staff note the baby is only a few weeks old and the umbilicus has not healed properly. The

signs are consistent with which of the following diseases? A) infant botulism B) acute bacterial meningitis C) tetanus D) rabies E) listeriosis

Biology & Microbiology