From its atomic number of 15, it is possible to predict that the phosphorus atom has _____

A) 5 neutrons, 5 protons, and 5 electrons
B) 15 neutrons and 15 protons
C) 8 electrons in its outermost electron shell
D) 15 protons and 15 electrons


D

Biology & Microbiology

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Water leaving an efficient wastewater treatment facility ideally has a biochemical oxygen demand (BOD) between ________ units

A) 50 and 100 B) 25 and 50 C) 5 and 25 D) 0 and 5

Biology & Microbiology

In humans, crossing over ________

a. occurs at least once per chromosome b. is exceedingly rare c. occurs 46-95 times per chromosome d. never happens

Biology & Microbiology

Judah Folkman used which experimental model system to explore the relationship between tumor growth and angiogenesis?

A) a rabbit eye B) the colon C) bone marrow D) mouse skin E) in vitro cells

Biology & Microbiology

In one type cross of black × black, the results were as follows: 9/16 black 4/16 yellow 3/16 brown The genotype aabb must result in which of the following?

A) Black B) Brown C) Yellow D) A lethal result

Biology & Microbiology