What Is Life? A Guide to Biology with Physiology
4th Edition
ISBN: 9781319065447
Author: Jay Phelan
Publisher: W. H. Freeman
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Chapter 20, Problem 3MC
Summary Introduction
Introduction:
Fruits are consumed by animals which help to disperse the seeds within the fruits.
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Which 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 germination
A plant biologist discovers a new species of plant in the ashes of a recent forest fire along the sides of a steep mountain range. It is fall, and temperatures are dropping below freezing. The biologist cannot stay in the field to observe the plant. What can he infer about the plants reproductive strategy based on his recent observations?
A) the plant will produce flowers because at this altitude there is sufficient sunlight
B) the plant will produce comes because cones will mature into adult plants more rapidly
C) the plant will produce cones because cones allow for seed dispersal through all seasons
D) the plant will produce flowers because flowers can protect the seed from extreme conditions
Identify the part of the flower based on the function.
a.) Male reproductive part
b.) Makes the pollen (male sex cells)
c.) Holds up the anther
d.) Female reproductive part
e.) Top part of the carpel with sticky surface to trap pollen
f.) Joins the stigma and the ovary
g.) Contains the ovules (female sex cells)
Chapter 20 Solutions
What Is Life? A Guide to Biology with Physiology
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- Which 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_forwardContractile roots usually are combined with such shoot modification as A. Bulb B. Tuber C. Rhizome D. Tendril E. Stolenarrow_forwardWhich of the following is NOT a component of a flower? a. Sepal c. Carpel b. Stamen c. Carpel d. Bractarrow_forward
- Which of the following is NOT regulated by Gibberellins? seed germination a. b. fruit growth gravitropism Oc. stem elongation d.arrow_forwardPresence of all of the following factors promotes dormancy of seeds, except a.Phenolics b.Impermeable seed coat c.Immature embryo d.Gibberellinsarrow_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_forward
- The three main parts of a typical mature eudicot seed are the _______ . a. pollen grain, egg, and seed coat b. embryo, endosperm, and seed coat c. megaspores, microspores, and ovule d. embryo, cotyledons, and seed coatarrow_forwardThe shoot tip of an emerging maize seedling is protected by a. hypocotyl. b. epicotyl. c. coleoptile. d. plumule.arrow_forwardWhich of the following statements is NOT true of the stems of vascular plants? a. Stems are composed of repeating segments, including nodes and internodes. b. Primary growth only occurs at the shoot apical meristem. c. Vascular tissues may be arranged on the outside of the stem or scattered throughout the stem. d. Stems can contain stomata.arrow_forward
- Key features of seed plants facilitating life on land include three of the following four traits. Which of these is an exception? a. Reduced gametophytes b. Pollen c. Homospory d. Seeds Which of these will most likely happen when bryophyte spores are dispersed to a favorable habitat, such as a moist soil or tree bark? a. They will germinate and grow into sporophytes. b. They will germinate and grow into haplophytes. c. They will germinate and grow into chlorophytes. d. They will germinate and grow into gametophytes. Which of the following is the purpose of having cuticles only at the upper surface of thallus of a non-vascular plant like a moss? a. Direct water and nutrient absorption b. Efficient exchange of gases c. Faster generation of osmotic pressure in leptoids d. Easier diffusion of carbon dioxidearrow_forwardWhich of the following are traits mentioned in the article that allow seeds to be epizoochorous? a. having hooks or barbs b. being mixed with mud c. being mixed within the residues of the fruit's pulp d. being brightly colored The article mentioned is listed by the link below: https://www.mdpi.com/2076-2607/10/10/1912 I don't know how else to include what the article in question is besides just providing the link for it iarrow_forwardWhich of the following is a simple, dry, and dehiscent fruit?a. apple d. pineappleb. tomato e. legume podc. walnutarrow_forward
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