Predation is similar to ________ in that both types of relationship benefit one of the interacting species while harming the other
A) competition B) parasitism C) coevolution D) symbiosis E) mutualism
B
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Ferns occupy diverse habitats and have unique adaptations. Which of the following statements regarding fern adaptations is not true?
A. Tiny aquatic ferns, such as Salvinia, float on the surface of the water. B. Epiphytic ferns, such as staghorn ferns, often produce two leaf types, one for photosynthesis and spore production and the other to form a pocket that collects organic matter. C. Azolla is a tiny aquatic fern that has been used for centuries as a biofertilizer of rice. D. Unlike many other groups of plants, ferns have not been found to have symbiotic associations with nitrogen-fixing bacteria. E. Approximately 40% of living ferns are epiphytes.
Which of the following is the best hypothesis for the honeybee study?
a. Honeybees navigate using the sun. b. Patients undergoing anesthesia during surgery are often disoriented when they awaken. c. Isoflurane interferes with the functioning of an organism’s biological clock. d. Both mammals and honeybees have biological clocks that are similar in function.
Egg yolk and seed endosperm are examples of passive parental care
Indicate whether the statement is true or false.
Which of these statements is NOT correct about flatworms?
A. Flatworms are deuterostomes. B. The embryos of flatworms are triploblastic. C. Flatworms have a sac body plan with an incomplete gut. D. Flatworms are in phylum Platyhelminthes. E. Flatworms are free-living or parasitic.