Campbell Biology: Concepts & Connections, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (8th Edition)
8th Edition
ISBN: 9780133909029
Author: Jane B. Reece, Martha R. Taylor, Eric J. Simon, Jean L. Dickey, Kelly A. Hogan
Publisher: PEARSON
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Textbook Question
Chapter 31, Problem 2TYK
In
a. Each one fertilizes a separate egg cell.
b. One fertilizes an egg, and the other is kept in reserve.
c. Both fertilize a single egg cell.
d. One fertilizes an egg, and the other fertilizes a cell that develops into stored food.
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Students have asked these similar questions
How does double fertilization occur in flowering plants?a. The two sperm in a pollen tube fertilize the two egg cells present ineach female gametophyte.b. One of the two sperm in a pollen tube fertilizes the single egg in afemale gametophyte, and the other fuses with the two nuclei presentin the central cell.c. Two sperm, one contributed by each of two different pollen tubes,fertilize the two egg cells in a single female gametophyte.d. Two sperm contributed by separate pollen tubes enter a singlefemale gametophyte; one of the sperm fertilizes the egg cell, and theother fertilizes the central cell.e. None of the above is correct.
Which suite of reproductive features distinguishes angiosperms from gymnosperms?
A.
The carpel, double fertilisation, endosperm formation
B.
Pollen-formation, double fertilisation, seed-formation
C.
Pollen-formation, the carpel, double fertilisation, endosperm formation
D.
The carpel, double fertilisation, endosperm formation, seed-formation
What adaptation do seed plants have in addition to the seed that is not found in seedless plants?a. gametophytesb. vascular tissuec. pollend. chlorophyll
Chapter 31 Solutions
Campbell Biology: Concepts & Connections, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (8th Edition)
Ch. 31 - Prob. 1CCCh. 31 - In angiosperms, each pollen grain produces two...Ch. 31 - Prob. 3TYKCh. 31 - Prob. 4TYKCh. 31 - Prob. 5TYKCh. 31 - Produces sperm a. pollen gain b. ovule c. anther...Ch. 31 - Prob. 7TYKCh. 31 - Houses ovulesa a. pollen grain b. ovule c. anther...Ch. 31 - Prob. 9TYKCh. 31 - Prob. 10TYK
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- On what are plant embryos dependent? Select one: a. Water for pollination b. Nutrients provided by the sporophyte c. Water for fertilization d. Nutrients provided by the gametophytearrow_forwardHow are compound leaves distinguished from simple leaves?a. Compound leaves do not have axillary buds at the baseof leaflets.b. Compound leaves are smaller than simple leaves.c. Simple leaves are usually deciduous.d. Compound leaves are found only on pine trees.e. Simple leaves are found only in gymnosperms.arrow_forwardWhich of these pairs is mismatched? a. anther—produces microspores b. carpel—produces pollen c. ovule—becomes seed d. ovary—becomes fruit e. flower—is a reproductive structurearrow_forward
- Besides the seed, what other major structure diminishes a plant’s reliance on water for reproduction? a. flower b. fruit c. pollen d. sporearrow_forwardwhich statement about stems is true? a. Gymnosperms have herbaceous stems. b. Woody stems produce xylem and phloem only once during the life of a plant. c. The vascular bundles are arranged in a circle in herbaceous monocot stems. d. Stems connect the vascular tissue from shoot to root.arrow_forwardWhich 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_forward
- Which of the following traits characterizes gymnosperms? a. The plants carry exposed seeds on modified leaves. b. Reproductive structures are located in a flower. c. After fertilization, the ovary thickens and forms a fruit. d. The gametophyte is the longest phase of the life cycle.arrow_forwardWhat separates the gymnosperms from other seed plants?a. a vascular systemb. wind dispersion of pollenc. ovules not completely covered by the sporophyte at the time of pollinationd. fruits and flowersarrow_forwardCompare what happens to a spore mother cell as it gives rise to a spore with what happens to a spore as it gives rise to a gametophyte. a. The spore mother cell and the spore both go through meiosis. b. The spore mother cell and the spore both go through mitosis. c. The spore mother cell goes through mitosis, and the spore goes through meiosis. d. The spore mother cell goes through meiosis, and the spore goes through mitosis.arrow_forward
- How would plant development change if the functions of the genes SHOOTMERISTEMLESS (STM) and MONOPTEROUS (MP) were reversed? a. The embryo–suspensor axis would be reversed. b. The embryo–suspensor axis would be duplicated. c. The root–shoot axis would be reversed. d. The root–shoot axis would be duplicated.arrow_forwardIt is in the plants that mature cells can revert to what undifferentiated state? A. callus B. gametes C. stem cells D. totipotent cellsarrow_forwardThe structure of the fern sporangium shown promotes spore dispersal by a ‘catapult’ mechanism. What is the driving force involved? A. Increased pressure within the sporangium B. Opening of the sporangium mouth C. Elastic rebound D. Water evaporation from the annulusarrow_forward
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