In skeletal muscle, calcium ions are stored in the sarcoplasmic reticulum.
Answer the following statement(s) true (T) or false (F)
Answer: True
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A researcher has a petri dish containing several species of bacteria, but no viruses. She notices that the population of E. coli in her petri dish has no antibiotic resistance
Two weeks later, she reassesses the bacteria and finds that the E. coli have acquired antibiotic resistance. How could this have happened? A. E. coli acquired the genes conveying antibiotic by conjugation with other bacterial cells. B. E. coli acquired the genes conveying antibiotic by transformation. C. Spontaneous mutations conveying antibiotic-resistance arose in the E. coli population of the petri dish. D. All of these answer options are correct.
As a scientist, which of the following would you use as evidence to propose changing the traditional animal
phylogenies? a. fossil record b. molecular data c. predator-prey relationships d. newly discovered prokaryotes in soil e. better electron microscope pictures of cells
In the lungs, _______.
a) both oxygen and carbon dioxide enter the blood b) oxygen enters the blood while carbon dioxide leaves the blood c) carbon dioxide enters the blood while oxygen leaves the blood. d) both oxygen and carbon dioxide leave the blood.
Adaptive radiation in the Hawaiian honeycreepers shows the interesting pattern that _______ species are found on __________ islands
Fill in the blank(s) with the appropriate word(s).