A botanist is studying the growth rings of a redwood tree. She notices that three concentric rings are very thin compared to the surrounding growth rings. What can she deduce from the occurrence of these thin growth rings?
A. The tree developed more apical shoot
meristems during that time period.
B. The tree may have experienced a drought
or had limited access to nutrients during that
time period.
C. The tree developed more secondary xylem
during that time period.
D. The tree had ample access to water and
other resources during that time period.
B
You might also like to view...
Cellular structures that function in movement and consist of numerous short hairlike extensions from the cell are called ________
Fill in the blank(s) with correct word
Antimicrobial spectrum of activity is best defined as
A. The types of bacteria against which a particular antimicrobial agent does and does not have activity B. the mechanism a microorganisms uses to resist the effects of a given antimicrobial C. Combination drug therapies D. Refers to the multidrug resistance of an organism
Which of the following hormones is released to correct a hypoglycemic state?
a. Insulin b. Testosterone c. Estrogen d. Glucagon
An elderly woman is experiencing fever, chest pain, difficulty breathing, and a cough that occasionally brings up mucus containing blood. She reports having visited family in rural New Mexico over the Labor Day weekend. A GMS-stained sample from her lungs shows the presence of large spherules. Which of the following is the most likely infecting agent?
A) Coccidioides immitis B) Blastomyces dermatitidis C) Histoplasma capsulatum D) Paracoccidioides brasiliensis E) Trichophyton rubrum