Which of these events is an example of indirect contact transmission?
A) A person develops plague from a flea bite.
B) Vacationers develop shigellosis, caused by the intestinal pathogen Shigella spp., after drinking contaminated water.
C) Tuberculosis is spread from one person to another after traveling through the air for several meters.
D) A person drinks from a cup used by another individual.
E) Several people become infected with Listeria after consuming contaminated ice cream.
Ans: D) A person drinks from a cup used by another individual.
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The direction of expansion for a plant cell is determined primarily by ____
a. location of the cell plate b. the direction of cell division c. the direction to the nearest meristem d. orientation of cellulose microfibrils e. gravity
The evolution of horses involves primarily anagenesis
Indicate whether the statement is true or false.
Which one of the following is a CORRECT statement regarding metabolism?
A) Few living organisms require raw materials and a constant source of energy. B) Plants get the raw materials they need for life processes entirely from the air. C) Cells maintain life through the breakdown of molecules and energy by chemical and physical processes. D) Cells do not require energy to change molecules from one form to another. E) Animals use energy obtained directly from the sun and chemicals obtained from plants, other animals, air, and water.
The discipline of ________ measures the trade-offs between the monetary value of human developments and the loss of ecosystem services
Fill in the blank(s) with correct word