A zero-sum or constant-sum game is one in which the parties view conflict as a fixed pie - where one party wins, the other must lose.

Genes on the X chromosomes are ________.

A) polygenic
B) X-linked
C) simple
D) holandric
E) Y-linked

Which of the following best describes the insertion of the extensor digitorum?

A) It indirectly inserts on all digits of the hand.
B) It indirectly inserts on all digits of the hand except the thumb.
C) It directly inserts on all digits of the hand.
D) It directly inserts on all digits of the hand except the thumb.
E) It directly inserts on the index finger only.

Ecological efficiency, described as the percentage of energy at one trophic level that ends up in tissue in the next level, is approximately ____ to ____%.

A) 1; 5
B) 1; 20
C) 5; 30
D) 10; 40
E) 50; 60

Taste cells can detect at three primary types of taste: salty, sour, and bitter.

Describe the part of the cell where polar and nonpolar signaling molecules bind to their respective receptor. Explain your reasoning.

loose connective tissue

A) makes up tendons
B) contains collagen and elastin; surrounds internal organs and underlies epithelial tissue
C) final form is hardened by calcium and phosphorus
D) stores fatty reserves; little extracellular matrix
E) forms deep skin layers and a protective capsule around kidneys
F) contains no blood vessels