BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 21, Problem 12SA
Summary Introduction
Introduction:
Pollination is the process of transmission of male gamete to female gamete by the help of various agencies such as air, water, insects, birds, bat and many more. Different plants are pollinated by different means.
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Chapter 21 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 21 - The first plants were_________. a. ferns c....Ch. 21 - Which of the following statements is false? a....Ch. 21 - In bryophytes, eggs are fertilized in a chamber on...Ch. 21 - Prob. 4SACh. 21 - Coal consists primarily of compressed remains of...Ch. 21 - Prob. 6SACh. 21 - Prob. 7SACh. 21 - Prob. 8SACh. 21 - Only angiosperms produce_______. a. pollen c....Ch. 21 - The _______do not have xylem or phloem. a. mosses...
Ch. 21 - Prob. 11SACh. 21 - Prob. 12SACh. 21 - Prob. 13SACh. 21 - Prob. 14SACh. 21 - Prob. 15SACh. 21 - Early botanists admired ferns but found their life...Ch. 21 - In animals, meiosis of germ cells produces...Ch. 21 - In most plants the largest, longest-lived body is...Ch. 21 - Consider a cherry pit, which is a seed with a...Ch. 21 - Suppose you wanted to make a science fiction film...
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- After double fertilization, a zygote and ________ form. a. an ovule b. endosperm c. a cotyledon d. a suspensorarrow_forward______is the hormone in most rooting compounds. a. Gibberellin c. Cytokinin b. Auxin d. ABAarrow_forwardA. Pollen tube B. C. Which part of this angiosperm egg will become the endosperm? D B E A с D. E.arrow_forward
- All of the vascular bundles inside a typical______ are arranged in a ring. a. monocot stem c. monocot root b. eudicot stem d. eudicot rootarrow_forwardSecondary growth in stems is usually seen in ________. a. monocots b. dicots c. both monocots and dicots d. neither monocots nor dicotsarrow_forwardThe main photoreceptor that triggers phototropism is a ________. a. phytochrome b. cryptochrome c. phototropin d. carotenoidarrow_forward
- A seed is a(n)_______ . a. female gametophyte c. mature pollen tube b. mature ovule d. immature microsporearrow_forward_______attach mosses to soil. a. Rhizoids c. Roots b. Rhizomes d. Strobiliarrow_forwardAn animal pollinator may be rewarded by______ when it visits a flower of a coevolved plant (choose all that apply). a. pollen c. hormones b. nectar d. fruitarrow_forward
- 1.Spraying some plants with a combination of auxin and gibberellins will . A. promote ripening of fruits B. promote fruit formation C. preventing senescence D. enlargers’ fruit growth 2. All lowering plants belong to class . A. conifers B. angiospermae C. felicinae D. gymnospermaearrow_forwardMeiosis of cells in pollen sacs forms haploid______ . a. megaspores c. stamens b. microspores d. sporophytesarrow_forwardA tropism in response to seasonal changes is associated with a. heliotropism b. phototropism c. photoperiodism d. thigmotropismarrow_forward
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