In an ecosystem, nutrients __________ and energy __________.
Fill in the blank(s) with the appropriate word(s).
Answer: are recycled / flows through
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The Angel Oak on Johns Island, South Carolina is estimated to be up to ____ years old
a. 300 b. 1000 c. 1400 d. 2000 e. 2400
Drugs such as Gleevec® and Herceptin® represent a modern approach to cancer treatment because they
A) target specific gene alterations that occur in some cancers. B) target metabolic pathways that are common to all cells. C) enhance apoptotic pathways in all cells. D) target proteins that are present in both normal and cancer cells, but that cancer cells rely on more than normal cells do.
The measure of differential survival and reproductive success is termed ____________________. Fill in the blank(s) with the appropriate word(s)
Which of the following is NOT a function of plastids?
A) Extracting energy from food and converting it to ATP B) Storing pigments C) Storing photosynthetic products D) Carrying out photosynthesis