You return home to find that your baby brother has scattered his toy trains and trucks all over the floor of your room. As you begin to pick up the toys and put them away, you realize that even though he is just a baby, he has clearly mastered:
A. the first law of thermodynamics.
B. the second law of thermodynamics.
C. potential energy.
D. free energy.
B
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How is adaptive immunity different from innate immunity?
a. adaptive immunity is less effective than innate immunity b. adaptive immunity is nonspecific; innate immunity is specific c. adaptive immunity is immediate; innate immunity is slower acting d. adaptive immunity has memory; innate immunity does not e. adaptive immunity is the first line of defense; innate immunity is the second line of defense
In Mendel’s hybridization experiments, what was the first indication that the blending theory of inheritance was incorrect?
a. All self-crossed offspring were physically identical to their parents except for selected traits like color or size. b. F2 generation offspring expressed traits according to predictions made using the laws of probability. c. 100% of the F1 offspring of true-breeding parents expressed dominant traits instead of a blend of both parents’ traits. d. Offspring of true-breeding parents with recessive traits became infertile when self-crossing after the F3 generation.
Intervertebral disks composed of ____ separate adjacent vertebrae in the human vertebral column
a. cartilage b. tendons c. fibrous connective tissue d. ligaments e. bone marrow
What is the primary role of a mushroom's underground mycelium?
a) protection b) anchoring c) sexual reproduction d) asexual reproduction e) absorbing nutrients