In neutral atoms
a. protons and neutrons
b. neutrons and electrons
c. protons and electrons
Ans: c. protons and electrons
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Describe the process by which botulinum toxin interrupts the crossbridge cycle.Provide other possible uses for this
toxin.
Indicate whether the statement is true or false.Which of the following represents the most
correct order of the organization of life from the smallest unit to the largest?
a. atoms ? molecules ? cells ??organisms ? populations ? communities ? ecosystems ? biosphere b. atoms ? molecules ? cells ??organisms ? communities ? populations? ecosystems ? biosphere c. atoms ? molecules ? cells ??organisms ? populations ? ecosystems ? communities ? biosphere d. communities ? biosphere ? organisms ? ecosystems ? populations ? cells ? molecules ? atoms e. biosphere ??organisms ??communities ? ecosystems ? populations ? molecules ??cells ? atoms
Which of the following statements is true concerning enzymatic activity?
A. As the temperature increases, most enzymatic reactions will still proceed at the same rate. B. Temperature has no impact on enzymatic activity. C. Each enzyme has a preferred pH at which the enzyme reaction rate is highest. D. Below a certain temperature, an enzyme will become denatured. E. Enzyme activity increases as substrate concentration decreases.
Which of the following is associated with sexual reproduction?
A) fission, only B) fragmentation, only C) budding, only D) None of these are associated with sexual reproduction.