BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
3rd Edition
ISBN: 9781260670929
Author: Hoefnagels
Publisher: MCG CUSTOM
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Chapter 16, Problem 9WIO
The immature fruit of the opium poppy produces many chemicals that affect animal nervous systems. In what way might these chemicals benefit the plant?
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The immature fruit of the opium poppy produces many chemicals that affect animal nervous systems. In what way might these chemicals benefit the plant?
the fruits of wild daisy has hair like structures called pappus What do these structures represent in the flower from which the fruit was derived?
Name a plant hormone which breaks the dormancy of buds and seeds.
Chapter 16 Solutions
BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
Ch. 16.1 - Prob. 1MCCh. 16.1 - Prob. 2MCCh. 16.1 - Prob. 3MCCh. 16.1 - Prob. 4MCCh. 16.1 - Prob. 5MCCh. 16.2 - Prob. 1MCCh. 16.2 - Prob. 2MCCh. 16.2 - Prob. 3MCCh. 16.3 - Describe the four groups of seedless vascular...Ch. 16.3 - Prob. 2MC
Ch. 16.3 - Prob. 3MCCh. 16.4 - Prob. 1MCCh. 16.4 - Prob. 2MCCh. 16.4 - Prob. 3MCCh. 16.4 - What happens during and after pollination in...Ch. 16.5 - Prob. 1MCCh. 16.5 - Prob. 2MCCh. 16.5 - Prob. 3MCCh. 16.5 - Prob. 4MCCh. 16 - Prob. 1MCQCh. 16 - Prob. 2MCQCh. 16 - Prob. 3MCQCh. 16 - Prob. 4MCQCh. 16 - Prob. 5MCQCh. 16 - Why do many ferns require a shady, moist habitat?...Ch. 16 - Prob. 7MCQCh. 16 - Prob. 8MCQCh. 16 - Prob. 9MCQCh. 16 - Prob. 10MCQCh. 16 - Prob. 1WIOCh. 16 - Prob. 2WIOCh. 16 - Prob. 3WIOCh. 16 - Prob. 4WIOCh. 16 - Prob. 5WIOCh. 16 - Prob. 6WIOCh. 16 - Prob. 7WIOCh. 16 - How do angiosperms differ from gymnosperms? How...Ch. 16 - The immature fruit of the opium poppy produces...Ch. 16 - Prob. 10WIOCh. 16 - Prob. 11WIOCh. 16 - Compare and contrast the life cycles of the four...Ch. 16 - Prob. 13WIOCh. 16 - Prob. 1SLCh. 16 - Review the relationship between natural selection...Ch. 16 - Prob. 2PITCh. 16 - Prob. 3PITCh. 16 - Describe the relationship between pollen and...
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- What are the pharmaceutical produts of seed plants and their biological activities?arrow_forwardCompare and contrast the characteristics of a somatic embryo and a shoot grown directly from a leaf explant. Explain the differences between somatic and androgenic embryos.arrow_forwardin fruits of wild daisy, what role can the pappus play in seed dispersal?arrow_forward
- Tobacco plants invest a lot of resources into the production of secondary compounds know as alkaloids (e.g., nicotine) that we believe act as defenses against herbivores. The researchers did an experiment where they added a hormone that reduces the production of alkaloids. In graph (a), the data show that the hormone reduced the proportion of alkaloids as a function of leaf mass relative to controls- so the hormone worked. They also measured the lifetime seed production of the plants in both treatments without any herbivores present (b). They had the following results. What might you conclude/hypothesize/investigate based on the data in graph (b) (a) Chemical defenses (percent of leaf mass) 1.8% 1.4 1.0 0.6 0.2 No hormone added Hormone added (b) Lifetime seed mass (g/plant) -18 14 10 No hormone added Hormone added It would be good to test whether the hormone is very specific or whether it might also cause changes in other metabolic processes The hormone has no effect on the lifetime…arrow_forwardThis plant is referred to as This plant is referred to as : Venus flytrap : butterwort : sundew : bladderwortarrow_forwardIn flowers, the structures that produce male gametophytes are called _______ ;the strcutures that produce female gametophytes are called _______ . a. pollen grains; flowers c. anthers; stigma b. stamen; carpels d. megaspores; microsporesarrow_forward
- In an angiosperm life cycle, sexual reproduction includes: meiosis within the male gametophyte to produce sperm. meiosis within the female gametophyte to produce eggs. meiosis within the ovary to produce megaspores. fertilization leading to development of microspores. fertilization leading to development of megaspores.arrow_forwardWhich of the following statements is false? a. Auxin and gibberellin promote stem elongation b. Cytokinin promotes cell division in shoot tips c. Abscisic acid promotes water loss and dormancy d. Ethylene promotes fruit ripening and abscission.arrow_forwardWhat adaptation do seed plants have in addition to the seed that is not found in seedless plants? a. gametophytes b. vascular tissue c. pollen d. chlorophyllarrow_forward
- What is a seed? What are four key adptations common in seed plants? What are the advantages of reduced gametophyte?arrow_forwardWhich of the following hormones are NOT matched with the proper function? abscisic acid- promotes leaf abscission cytokinins-stimulates cell division ethylene- promotes fruit ripening gibberellic acid- promotes stem elongation auxin-promotes increases in cell sizearrow_forwardWhat is the evolutionary advantage for a flowering plant to be pollinated with pollen from a different individual plant (of the same species)?arrow_forward
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