The respiratory system is unlike the digestive system in that air flows into and out of the same opening.
Answer the following statement true (T) or false (F)
True
In the respiratory system, air flows into and out of the nasal cavity. In the digestive system, food goes in the mouth, and waste comes out the anus.
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A fungal mycelium is a large accumulation of ________, which may appear dusty or fuzzy due to the presence of ________
A) coenocytes / conidia B) coenocytes / mycorrhizae C) hyphae / conidia D) hyphae / mycorrhizae
Most of the significant changes in activities and functions that accompany passage through a cell cycle checkpoint are regulated by the:
A. activation of microtubules. B. changes in membrane polarization. C. activation of kinase enzymes. D. activation of DNA polymerase. E. inhibition of cyclin proteins.
As described in your textbook, the concepts of metapopulation biology and island biogeography provide a valuable framework for thinking about the optimal design of nature reserves
A major goal of reserve design is to maximize the number of species living in reserves, and a long-standing debate in conservation biology concerns the question of whether it is better to have one large reserve or several small reserves. Reference: Ref 46-3 You are working for a group that lobbies for conservation of chameleon (a type of lizard) diversity in tropical rainforests. You are asked to describe what type of land reserve you would like to have set aside for the long-term conservation of chameleons. For which of the following would you advocate? A. one large reserve because it will hold all the species of chameleons B. one large reserve because it will hold more insects that are food for chameleons C. several small reserves, the total area of which is greater than the reserve area described in answer a, because it will hold more species of chameleons D. several small reserves because chameleons are relatively small and do not need that much space
In cats, short hair (L) is dominant to long hair
(l); if a short-haired cat of unknown genotype is crossed with a long-haired animal, and they produce one long-haired and one short-haired kittens, this would indicate that
a. the short-haired cat was pure-breeding. b. the short-haired cat was not pure-breeding. c. the long-haired cat was not pure-breeding. d. the long-haired cat was pure-breeding. e. none of these could be determined with only two offspring