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The _____ states that energy can neither be created nor destroyed, only transferred between the system and its surroundings-.

24). In all thing in the universe, Structure leads to                        .

What causes pressure?

32). Which inheritance pattern includes an environmental contribution?

37). Skin color is influenced by alleles of several genes as well as exposure to sunlight. Therefore, skin color is best described as a(n) _____ trait.

27). Why can you say that males determine the sex of their children?

Caffeine is an inhibitor of phosphodiesterase. What is the effect on signaling pathways in a cell exposed to caffeine?

17). Can androgens be present in both males and females?

Which of the following is incorrect about photosynthesis process?

19). A mass of cells resulting from uncontrolled cell division is called                           .