Bees are a colonial species and live in hives with thousands of other bees. Which of the following is an example of commensalism?
a. a bee hive located in an attic space
b. a bee hive in the trunk of a tree
c. a bee hive built in the ground
d. a bee hive in a wall
e. a bee hive in a garage
Answer: b. a bee hive in the trunk of a tree
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Cells that have developed an enlarged nucleus and lost some specialized structures and functions, but is not yet cancer, is called ________
Fill in the blank(s) with correct word
Suppose this experiment was repeated two weeks in a row. Each time the same person was the hand scrubber and the procedure was repeated exactly the same. Would you expect the number and kinds of microorganisms present in the first hand scrub (A) or the last hand scrub (E) to be similar from week to week?
A) I would expect the number and kinds of microorganisms present in the first hand scrub (A) to be similar from week to week. B) I would expect the number and kinds of microorganisms present in the last hand scrub (E) to be similar from week to week. C) Neither choice (scrub A or scrub E) would be similar from week to week.
One-thousandth of a meter is a
A. yard. B. millimeter (mm). C. micrometer (?m). D. nanometer (nm). E. centimeter (cm).
All organisms that generate energy (ATP) aerobically need to take in oxygen and remove carbon dioxide from their bodies. This process is known as
A) absorption. B) respiration. C) conduction. D) ingestion. E) elimination.