Performance at extreme temperature can acclimate.
a. true
b. false
Answer: a. true
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Isotopes of the same element differ from each other in the number of ____
a. electrons and protons b. neutrons only c. protons and neutrons d. electrons only e. protons, neutrons, and electrons
Excretory systems maintain homeostasis through all of the following except:a
adjusting the concentrations of various substances in body fluids. b. removing excess water from the body. c. adjusting body temperature. d. ridding the body of harmful substances. e. removing metabolic wastes from the body.
What is the primary purpose of RNA in Eukaryotes?
A. To assist in replication of DNA by unzipping DNA strands. B. To transfer genetic information from DNA to ribosomes for translation. C. To store, replicate and pass genes down across generations. D. To construct nuclear envelope during mitosis.
Charles Darwin and Alfred Russel Wallace both realized that most species produce many more offspring than is necessary to maintain a constant population. What might be the fate of the excess individuals?
A) They evolve to take advantage of natural resources. B) The more favorable forms survive and reproduce, but the others do not. C) They mutate and then are able to adapt to new environments.