Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Chapter 26, Problem 20CTQ
What role did the adaptations of seed and pollen play in the development and expansion of seed plants?
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Chapter 26 Solutions
Biology 2e
Ch. 26 - Figure 26.8 At what stage dees the diploid zygote...Ch. 26 - Figure 26.15 If a flower lacked a megasporangium,...Ch. 26 - Seed plants are. all homosporous mostly...Ch. 26 - Besides the seed, what ether major structure...Ch. 26 - In which of the following geological periods would...Ch. 26 - Which of the following structures widens the...Ch. 26 - Which of the following traits characterizes gym...Ch. 26 - Megasporocytes will eventually produce which of...Ch. 26 - What is the ploidy of the following structures...Ch. 26 - In the northern forests of Siberia, a tall tree is...
Ch. 26 - Which of the following structures in a flower is...Ch. 26 - Pollen grains develop in which structure? the...Ch. 26 - In the course of double fertilization, one sperm...Ch. 26 - Corn develops from a seedling with a single...Ch. 26 - Which of the following plant structures is not a...Ch. 26 - White and sweet-smelling flowers with abundant...Ch. 26 - Abundant and powdery pollen produced by small,...Ch. 26 - Plants are a source of food fuel medicine all of...Ch. 26 - The Triassic Period was marked by the increase in...Ch. 26 - What role did the adaptations of seed and pollen...Ch. 26 - The Mediterranean landscape along the sea shore is...Ch. 26 - What are the four modern-day phyla of gymnosperms?Ch. 26 - Some cycads are considered endangered species and...Ch. 26 - What are the two structures that allow angiosperms...Ch. 26 - Biosynthesis of nectar and nutrient-rich pollen is...Ch. 26 - What is biodiversity and why is it important to an...
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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
- What are the microsporangia of seed plants?arrow_forwardHow would a loss-of-function mutation in the α-amylase gene affect seed germination? a. The seed could not imbibe water. b. The embryo would starve. c. The seed coat would not rupture. d. The seed would germinate prematurely.arrow_forwardGymnosperms were also the first plants to develop pollen . Which of the following statements correctly describes one of the advantages of pollen ?arrow_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_forwardWhat is a function of the flower? a.) to develop into fruits which contains seed for reproduction b.) to hold the plant firmly to the ground c.) to absorb water mineral salts from the soilarrow_forwardDescribe the development of pollen grain and the development of embryosac of flowering plantsarrow_forward
- Theophrastus of Lesbos, Aristotle’s successor as head of the Lyceum, improved upon Aristotle’s botany by classifying all monocotyledons as flowering plants with: two seed-leaves in the embryo, branching leaf veins, and flower parts in multiples of 4 or 5 one seed-leaf in the embryo, branching leaf veins, and flower parts in multiples of 4 or 5 one seed-leaf in the embryo, parallel leaf veins, and flower parts in multiples of 3 or 6 two seed-leaves in the embryo, parallel leaf veins, and flower parts in multiples of 3 or 6 two seed-leaves in the embryo, branching leaf veins, and flower parts in multiples of 3 or 6arrow_forwardHow 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.arrow_forwardWhich 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-formationarrow_forward
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