If you were in charge of preserving ancient stone ruins and sculptures in an outdoor environment, what strategies would you use to prevent deterioration of the stone?
What will be an ideal response?
Answer: Biodeterioration is important to the overall deterioration of stone materials over time. A complex community of microorganisms develops on the surface and inside the stone material. Fungi and fungi-algae symbioses are thought to have a large role in biodeterioration of stone through the production of oxalic acid, which dissolves minerals. Strategies to prevent deterioration could involve protecting the objects from light (to inhibit the growth of lichens) or application of mild anti-fungal solutions. Any strategies related to decreasing fungal growth are appropriate.
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Which type of signaling regulates the pain response?
a. endocrine b. paracrine c. autocrine d. direct signal across gap junctions
Which statement about sex chromosomes is correct?
a. The Y chromosome carries a greater number of genes for nonsexual traits than does the X. b. X and Y are different in size but carry nearly equal numbers of genes. c. The X chromosome carries more genes for nonsexual traits than does the Y. d. The X chromosome carries only gender-related genes. e. The X chromosome carries the SRY gene.
The extraembryonic membrane closest to the embryo is the:a
amnion. b. archenteron. c. chorion. d. blastocyst. e. neural plate.
Baby bobcats watched as their mother stalked a rabbit and pounced, catching a meal that was shared by all. The next day, two of the young bobcats were seen stalking a field mouse, which easily escaped from the inexperienced hunters. The young bobcats
were learning how to hunt by the process of A) social learning. B) imprinting. C) habituation. D) associative learning.