Refer to the Figure

question 49

Multiple Choice

Refer to the figure.
Suppose that trees in the boreal forest biome, a climate diagram for which is shown here, require at least 35 mm of average monthly precipitation to grow. The average growing season is 130 days per year. According to the climate diagram, growth in boreal forests is most likely limited by

• A) temperature only.
• B) precipitation only.
• C) both temperature and precipitation.
• D) temperature in the winter and precipitation in the summer.

---

Definitions:

HIV Virus

Human Immunodeficiency Virus, a virus that attacks the immune system and can lead to Acquired Immunodeficiency Syndrome (AIDS) if not treated.

Mean Number

The arithmetic average of a set of values or quantities, computed by dividing the total of all values by the number of values.

Blood Samples

Specimens of blood collected for analysis or testing for medical purposes.

First Serves

In tennis, the initial serve attempt in a point, which must land in the diagonally opposite service box to be considered valid; if unsuccessful, it's followed by a second serve.