8) Which organism(s) are critical in rendering sea grass material digestible? a)
ID: 192441 • Letter: 8
Question
8) Which organism(s) are critical in rendering sea grass material digestible? a) nekton b) phytoplankton c) decomposers 9) Which of the following may be a limited resource? a) light d) zooplankton b) mates 10) Corals secrete c) shelter d) two of the above a) Sico, radula b) SiCOs, calyx )CaCO2, rakula,calyx 11) What is the percent that benthic algae account for in primary production in seagrass beds? a) SiCQ3, and each polyp live in a radula b) Sico, calyx e) CaCO, e) all of the above a) 20% b) 30% c) 70% d) 80% a) coenosarc, calyx b) calyx, coenosarc c) mesentery, fungia d) limestone, calyx tissue.Explanation / Answer
Answers:
8(C) Decomposers.
Reason:
Bacteria and fungi are critical in rendering the plant material digestible.Bacteria and fungi are decomposers.
9(E) All of the above.
Reason:
Some of the limited resources that animals compete for:
Animals may also compete for mates so that they can reproduce.
Plants
Plants make their own food using photosynthesis, so they do not compete for food. Here are some of the things that plants do compete for preparing their own food.They are
10(D) CaCO3, Calyx;
Reason: Coral reefs form when polyps secrete skeletons of calcium carbonate (CaCO3). While secreting the skeletons of stony corals,the lower portion of the polyp, produces a cup, or calyx, in which the polyp sits
11.(C) 70%
Reason: Jensen & Gibson (1986) observed that epiphytic algae and sand microflora were responsible for 46 and 21 % of total benthic primary production respectively, for a combined sum of 67 %.
12.(B) Calyx, Coenosarc
Reason:
Calcium carbonate is secreted by reef-building polyps and forms a protective cup called a calyx within which the polyps sits. The coenosarc is a thin band of living tissue that connect individual polyps to one another
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