In a vertebrate with a four-chambered heart, the structure(s) containing blood with the highest O2 concentration is/are the ________.
A. inferior vena cava
B. pulmonary veins
C. right atrium
D. right ventricle
E. pulmonary arteries
Answer: B
Biology & Microbiology
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Metabolism is the sum of all _____________________ by which cells convert and utilize energy
Fill in the blank(s) with correct word
Biology & Microbiology
What part of the human body contains strong salts that can kill bacteria?
a. lungs b. mouth c. small intestine d. stomach e. large intestine
Biology & Microbiology
Major histocompatibility complex (MHC) molecules are what type of membrane protein?
a. enzyme b. anchoring protein c. receptor protein d. recognition protein
Biology & Microbiology
In the chalk bass drift activity last week, which of the following caused drift to occur?
A. A bottleneck B. The law of independent assortment C. The founder effect D. Random donation of gametes to offspring
Biology & Microbiology