WHAT IS LIFE? GDE.TO BIOLOGY W/PHYSIO.
5th Edition
ISBN: 9781319272531
Author: PHELAN
Publisher: MAC HIGHER
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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?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.
a. Describe the function of plant roots.
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Chapter 20 Solutions
WHAT IS LIFE? GDE.TO BIOLOGY W/PHYSIO.
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- 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 conditionsarrow_forwardIdentify 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)arrow_forwardContractile roots usually are combined with such shoot modification as A. Bulb B. Tuber C. Rhizome D. Tendril E. Stolenarrow_forward
- 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_forwardWhich of the following is NOT regulated by Gibberellins? seed germination a. b. fruit growth gravitropism Oc. stem elongation d.arrow_forwardWhich of the following is NOT a component of a flower? a. Sepal c. Carpel b. Stamen c. Carpel d. Bractarrow_forward
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