Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Textbook Question
Chapter 38, Problem 12TYK
Which of the following statements is false?
- a. Fly-pollinated flowers have reduced petals but large numbers of stamens to provide their pollinators with pollen.
- b. Insects pollinate approximately 65% of all flowering plants, and bees are the most important of these pollinators.
- c. The flowers of many temperate, wind-pollinated trees appear before the production of the leaves, which could interfere with pollen movement.
- d. Moths and bats, which are often active at night, are attracted to light-colored, fragrant flowers.
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Which of the following is True?a. Ethylene stimulates abscission layers to form.b. Abscisic acid causes abscission layers to form.c. Ethylene is sometimes sprayed on flowers to keep them fresh.d. Abscisic acid stimulates seed germination.
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Chapter 38 Solutions
Study Guide for Campbell Biology
Ch. 38 - Identify the flower parts in the following...Ch. 38 - a. Describe the male gametophyte. b. Describe the...Ch. 38 - Label the parts in the following diagrams of a...Ch. 38 - Prob. 4IQCh. 38 - a. List some ways in which fruits aid in seed...Ch. 38 - a. What is an advantage of apomixis? b. What is...Ch. 38 - How are vegetative reproduction and...Ch. 38 - Biofuels are considered carbon neutral, even...Ch. 38 - Draw a diagram of the major events in the life...Ch. 38 - List the advantages and disadvantages of sexual...
Ch. 38 - List some of the potential benefits and dangers of...Ch. 38 - ________ structure from which fruit typically...Ch. 38 - ________ generation that produces spores by...Ch. 38 - Prob. 3TYKFCh. 38 - Prob. 4TYKFCh. 38 - Prob. 5TYKFCh. 38 - Prob. 6TYKFCh. 38 - Prob. 7TYKFCh. 38 - Prob. 8TYKFCh. 38 - Prob. 9TYKFCh. 38 - Prob. 10TYKFCh. 38 - A flower on a dioecious plant is a. complete. b....Ch. 38 - Prob. 2TYKCh. 38 - Double fertilization involves fusion of sperm...Ch. 38 - The terminal cell of an early plant embryo a....Ch. 38 - Prob. 5TYKCh. 38 - Prob. 6TYKCh. 38 - Prob. 7TYKCh. 38 - Which of the following structures protects a bean...Ch. 38 - Prob. 9TYKCh. 38 - Prob. 10TYKCh. 38 - Prob. 11TYKCh. 38 - Which of the following statements is false? a....Ch. 38 - Prob. 13TYKCh. 38 - Prob. 14TYKCh. 38 - Prob. 15TYKCh. 38 - Prob. 16TYKCh. 38 - Which of the following techniques is being...
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- Under which of the following conditions would pollen from an S2S5 plant successfully pollinate an S1S5 flower? a. Using pollen from a carpelate flower to fertilize a staminate flower would be successful. b. If the plants used gametophytic self-incompatibility, half of the pollen would be successful. c. If the plants used sporophytic self-incompatibility, half of the pollen would be successful. d. Pollen from an S2S5 plant can never pollinate an S1S5 flower.arrow_forwardPin and thrum flowers are designed to: O a. Prevent the flowen being fertilised by its own pollen. O b. Increase the amount of pollen that the flower collects. C. Allow the flower to last for a longer period of time. d. Restrict pollinators to just one type of insect. Oe. Make the flovwer more attractive to a pollinator. O O O OOarrow_forwardOne of the differences in the seedling groups is A. after 12 hours moderate light plants have a greater chlorophyll content than the low light plants. B. after 8 hours moderate light plants have a greater chlorophyll content than the low light plants. C. after 5 hours moderate light plants have a greater chlorophyll content than the low light plants. D. after 3 hours moderate light plants have a greater chlorophyll content than the low light plants.arrow_forward
- Flower shape, scent, color, and the presence of nectar in the flowers of some angiosperms function toa. deter predators.b. attract animal pollinators.c. deter insect pests.d. enhance symbiosis.arrow_forwardWhich of the following statements is false?a. Auxin and gibberellin promote stem elongation.b. Cytokinin triggers growth of lateral buds.c. Abscisic acid promotes water loss and dormancy.d. Ethylene promotes fruit ripening and abscissionarrow_forwardWhich statement about wind-pollinated plants is correct? Their stamens and stigmas are inside the flower and, compared to insect-pollinated plants, they have large petals Their stamens and stigmas are outside the flower and, compared to insect-pollinated plants, they have small petals Their stamens and stigmas are outside the flower and, compared to insect-pollinated plants, they have large petalsarrow_forward
- Which of these is a feature not present in seedless plants that have contributed to the success of seed plants on land? a. Seeds have four layers of protective tissue, the seed coat, that improve survival by providing more protection from environmental stresses. b. The reduced gametophytes of seed plants are nurtured by sporophytes and protected from stress, such as drought conditions and UV radiation. c. Seed germination is solely mediated by water during episodes of heavy rain. d. Pollen grains, with walls containing sporopollenin, deter herbivores. Three unknown non-vascular plant species were collected by Biology 3 students. Which characters BEST discriminate them from one another? 1. protonema II. special organelles III. seta IV. calyptra V. capsule VI. stalk a. I,II,III b. I,III,V c. III, IV, V d. II,IV,VIarrow_forwardWhich of the following is true regarding germination? a. Imbibition of water is the first step of germination b. All are true regarding germination c. Shoots emerge first, then roots d. The seed coat stays intact during germination e. Freezing and thawing can help start germinationarrow_forwardPresence of all of the following factors promotes dormancy of seeds, except a.Phenolics b.Impermeable seed coat c.Immature embryo d.Gibberellinsarrow_forward
- Pollen grains of water pollinated species have a special characteristics for protection from water. What is that?arrow_forwardWhich of the following is false about the phytochrome protein?a. There are two convertible forms.b. It primarly absorbes blue wavelengths of light.c. It is involved in seed germination.d. It is involved in plant sensing of spacing.arrow_forwardAbundant and powdery pollen produced by small, indistinct flowers is probably transported by: a. bees and butterflies b. flies c. birds d. windarrow_forward
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