Walleye pike fish live in deep waters and feed at night. Another species of fish, the Northern pike, live in shallower waters and feed all day. Which of the following best explains these differences?
A. predation
B. parasitism
C. commensalism
D. resource partitioning
E. mutualism
Answer: D. resource partitioning
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Certain traits will have been lost from the gene pool forever. Some may be obvious, like people with red hair or double jointed thumbs. Others will be less obvious, like the ability to process cholesterol or being allergic to peanuts. This loss of diversity in a reduced population is called ________.
A) gene flow B) genetic drift C) bottleneck effect D) founder effect
In the Golgi, what type of protein modification will signal the polypeptide destination by determining the receptor to which the peptide will bind?
What will be an ideal response?
Why have tomatoes been genetically modified?
A) to improve absorption of vitamins in the human body B) to grow rapidly before temperatures fall below freezing C) to kill insect pests on contact D) to have a longer shelf life in grocery stores
Refer to the accompanying figure. Which of these lungs would be found in reptiles?
a. 1 only b. 2 only c. 3 only d. 4 only e. both 1 and 2