What are ecological reservoirs?
A. Nonliving components of ecosystems that require a constant input of chemicals
B. Nonliving components of ecosystems where chemicals accumulate
C. Living components of ecosystems that accumulate chemicals
D. Living components of ecosystems that cycle chemicals
Answer: B
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Which structure, A, B, C, or D, returns nearly all nutrients to the interstitial fluid?
1.A
2.B
3.C
4.D
Tear ducts pass between which two bones?
a. maxilla and sphenoid b. sphenoid and ethmoid c. nasal and lacrimal d. lacrimal and zygomatic e. lacrimal and maxillary
Helicobacter pylori produces (cytotoxin/hyaluronidase/urease), a unique virulence factor important to colonizing the digestive system
What will be an ideal response?
Why is a rhizoid not considered a true root?
A. Rhizoids are not capable of absorbing water. B. Rhizoids lack xylem tissue. C. True roots have mycorrhizal fungi. D. Only true roots are capable of nitrogen fixation. E. Rhizoids lack the capacity to anchor mosses into the substrate.