The eastern indigo snake often makes its home in abandoned gopher tortoise burrows. How would you characterize this relationship and its effect on each member?
A. parasitism: positive for snake, negative for tortoise
B. amensalism: negative for snake, neutral for tortoise
C. commensalism: neutral for snake, neutral for tortoise
D. amensalism: neutral for snake, negative for tortoise
E. commensalism: positive for snake, neutral for tortoise
E. commensalism: positive for snake, neutral for tortoise
You might also like to view...
Sperm are produced in the:
a. testes b. vas deferens c. epididymis d. prostate gland e. penis
The bacterial species Gemmata obscuriglobus can withstand high levels of radiation because ____
a. it has a membrane around its DNA b. its DNA is extra stable c. it is protected from the radiation by chloroplasts d. its Golgi bodies decontaminate the cell e. its circular DNA is inherently stable
What is the significance of the respiratory membrane to facilitate gas exchange?
A) It is covered with surfactant to accelerate gas exchange. B) Its thickness prohibits the alveoli from pulling away from the capillary. C) All three surfaces are kept moist through interstitial fluid exchange. D) The surface area is increased with this membrane. E) Epithelial and endothelial cells share a common basement membrane.
Zinc, an essential trace element for most organisms, is present in the active site of the enzyme carboxypeptidase. The zinc most likely functions as _____
A) a noncompetitive inhibitor of the enzyme B) an allosteric activator of the enzyme C) a cofactor necessary for enzyme activity D) a coenzyme derived from a vitamin