The human heart contains cells that do all of the following EXCEPT
A) contract. B) create new red blood cells.
C) generate electrical signals. D) respond to signals from the nervous system.
B
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Which of the following is the correct order of the three major forms of nitrogenous waste listed from highest amount of water required for excretion to lowest amount of water required for excretion?
A. ammonia, urea, uric acid B. ammonia, uric acid, urea C. urea, ammonia, uric acid D. urea, uric acid, ammonia E. uric acid, urea, ammonia
Which fish can grow to weigh a ton, and is known for high levels of internal and external parasites?
a. billfish. b. skipjack tuna. c. ocean sunfish. d. great white shark. e. pilot fish.
A zygote contains the __________ complement of chromosomes
a. haploid b. diploid c. polyploid d. spermatogenesis e. none of these
A high concentration of chlorophyll embedded in the plasma membrane fold of a newly discovered species of bacteria suggests a
A. Chemolithoautotrophic metabolism B. Photoautotrophic metabolism C. Chemoheterotrophic metabolism D. Photoheterotrophic metabolism