BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 21, Problem 5CT
Suppose you wanted to make a science fiction film in which human time travelers went back to the carboniferous. What types of modern plants would you use and which would you avoid if you wanted to depict the carboniferous setting as accurately as possible?
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You have access to the sequence genomes for moss and the lycophyte Selaginella. Your goal in analyzing the data is to write a ground-breaking paper that answers an important question about the evolution of plants. What questions would you try?
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A.
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D.
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Choose one adaptation and explore it further. What evidence do we have of this change? Are there specific fossils of plants that exhibit it? How do we think it may have developed? Not all of these changes occurred at the exact same time. Was your chosen adaptation one of the first or late to the game?
including references are appreciated.
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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- Which describes plant groups in order of terrestrial adaptations from earliest to the most recent? ferns, mosses, gymnosperms, and angiosperms liverworts, gymnosperms, ferns, and angiosperms angiosperms, mosses, ferns, and gymnosperms ferns, gymnosperms, liverworts, and angiosperms mosses, ferns, gymnosperms, and angiosperms 00000arrow_forwardWhile exploring a forest, you come upon a plant that you haven't seen before. You dig it up and take it back to your lab for further inspection. Back at the lab, you observe the characteristic structure of the plant and make some notes. Then, you carefully dissect the stems and leaves and look at the tissue under the microscope. Finally, you are able to determine the type of plant it is. Use the notes below to identify the class to which this plant belongs. Notes on physical characteristics of the specimen: the plant has no leaves or roots, but has hair-like rhizomes which anchors it in the soil the stems are highly branched sporangia are present at the ends of each stem dissection of the stem shows the presence of vascular tissue in the form of a xylem and phloemarrow_forwardThe evolution of land plants was challanged by both exposure to direct sunlight as well as adjusting to gravity. true or false?arrow_forward
- What evidence supports the idea that members of the plant kingdom evolved from ancestral green algaearrow_forwardFerns, such as the one in the picture, can be found today. they are usually found growing in warming climates. However, fossils of ferns have been found in places with cold climates where it often snows today. What can we conclude about the place where the fossils of ferns have been found? A) ferns used to live in cold climates. B) these places once had a warmer climate. C) these places once had a colder climate D) someone tired to grow ferns in cold climatesarrow_forwardAlthough we do not know exactly what the first vascular plant looked like we can be very confident that it was similar to the fossil plant Cooksonia. Based on our understanding of Cooksonia, we can assume that the first vascular plant? Reproduced using seeds in strobili Had photosynthetic stems, not leaves Did not have branches Was dioeciousarrow_forward
- If you were needing vitamin C to keep from getting scurvy, which plant family would you turn to? Group of answer choices Poaceae Rutaceae Rosaceae Fabaceaearrow_forwardCompare and contrast bryophytes (e.g. mosses) and seedless vascular plants (e.g. ferns). What differences exist between these classifications of plants, and how have these differences become evolutionarily advantageous?arrow_forwardTheophrastus 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_forward
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