This phylum of vascular, seed-bearing plants has about 550 known living species, the most among
gymnosperms. Many of them have needlelike leaves with thick cuticles and sunken stomata, and are
thus adapted to dry conditions.
a. Cycadophyta
b. Anthophyta
c. Gnetophyta
d. Coniferophyta
e. Ginkgophyta
D
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Blue crabs have specialized appendages called ________ that are utilized for additional locomotion
a. pleopods b. telson c. swimmerets d. chelipods
Identify the structure indicated by the letter “B” in
the internal environment. a. tight junctions b. adhering junctions c. gap junctions d. homeostatic junctions e. none of these
What weight classification would include a person with a BMI of 23?
What will be an ideal response?
Bicarbonate ions in the blood can absorb hydrogen ions, keeping pH balanced. Bicarbonate is acting as a ________ in blood.
A. alkaline B. base C. buffer D. acid