Which of the following describe a role that ethylene plays in plant physiology. (Check all that apply.)A) Retarding stem and root elongationB) Hastening the ripening of fruitC) Inhibition of leaf abscissionD) Inhibition of lateral bud growthE) Accelerates the loss of damaged fruits
What will be an ideal response?
A, B, D, E
The functions of ethylene are described in Section 31.8.
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What would the result be if a drug that blocks the action of polymerase was introduced into a virus-infected organism?
A) The virus would not be able to enter new host cells. B) The viral proteins would not be made and the virus would not be able to reproduce. C) The newly formed virions (virus particles) would be unable to leave the host cell. D) Viral proteins and viral DNA particles would not be able to be assembled.
Which of the following contributes significantly to the survival of Coxiella burnetti for long periods in the environment?
A. Protective pili B. Endospore-like structure C. Polysaccharide capsule D. Gram positive cell wall structure
Bladders on kelp function to anchor the thallus to the substrate
Indicate whether the statement is true or false
Humans have the least number of which class of teeth?
a. molars b. premolars c. canines d. incisors e. pre-canines