Which of the following statements is not a reason that conifers are absent from the tropics and are seemingly restricted to more temperate, cooler regions?
A. Conifers' single-celled tracheids cannot
support large levels of transpiration, whereas
those of angiosperms can.
B. Conifer pollination was not as effective in
the tropics as their populations became
fragmented by angiosperm competition.
C. In colder regions the dangers of cavitation
due to freezing restrict angiosperm growth.
D. In drier regions, the dangers of cavitation
due to drought restrict conifer growth.
D
You might also like to view...
Figure 15.4
In step 2 (above) in the identification of the colony that contains a targeted gene, ____.
A. bacterial cells are cloned B. bacterial colonies are transferred C. bacterial cells are ruptured D. DNA is lysed E. cells with the targeted gene are identified
How might climate change impact the incidence of a disease? Use a specific example to illustrate your answer
What will be an ideal response?
Specialized hair cells that contain special actin-rich sensory structures called __________ are located within the organ of Corti in the cochlea of the ear.
A) connecting cilia B) primary cilia C) stereocilia D) undulipodia E) respiratory cilia
Please match the viral diagnostic method to its description. Used to cultivate viruses and observe cytopathic effects on host cells
A) PCR B) Immunological testing C) Electron microscopy D) Cell and tissue culture techniques E) Observation of the patient