Which ponds contained both cichlids and killifish as predators?
a. primero, segundo, and quarto
b. segundo, quarto, and quinto
c. tercero and septimo
d. quinto and sexto
e. none of the above
c
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Some species of orchids attract pollinating Hymenoptera (bees and wasps) with flowers that closely mimic the appearance of a female insect. As the male attempts to mate with the flower, he becomes loaded with pollen, helping the plant to reproduce. If one of these orchid plants acquired a loss-of-function mutation in a CYCLOIDEA-like gene, what do you predict might happen?
A. The mutation would quickly spread through the population. B. The mutant plants would have fewer available resources to devote to nectar production. C. The mutant plants would attract larger numbers of pollinating male insects. D. The mutation would fail to spread in the population. Clarify Question What is the key concept addressed by the question? What type of thinking is required? What do you already know about insects as pollinators? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Which cycle involves materials moving through a series of transfers from living to nonliving systems and then back again?
A) biogeochemical B) geological C) continental D) uranium-lead
Which microscope bombards a whole, metal-coated specimen with electrons moving back and forth over it?
A) Fluorescence B) Transmission electron C) Phase-contrast D) Differential interference contrast E) Scanning electron
A saprobe with a cell wall will utilize extracellular digestion.
Answer the following statement true (T) or false (F)