Homework Help is Here – Start Your Trial Now!
Science
Biology
Question 8 This passage is adapted from Allie Wilkinson, "Panda Guts Not Suited to Digesting Bamboo." ©2015 by Macmillan Publishers Limited. Scientists suggest that the gut bacteria of giant pandas (Ailuropoda melanoleuca) may not have not evolved to efficiently break down cellulose, a hard-to-digest fiber found in the plant walls of bamboo, as previously thought. Ancient giant pandas, which were originally omnivorous, began introducing bamboo into their diet at least 7 million years ago, and eventually switched to eating bamboo exclusively 2.4 million to 2 million years ago. The bears evolved strong jaws and a "pseudothumb" to help them to consume the plant. But unlike other herbivores, they did not develop an elongated digestive tract or enzymes to help break down tough plant parts. Scientists studying the panda gut biome discovered that it is more closely related to that of carnivores, than other herbivores. The scientists found little diversity in the microbes that live in panda guts, and none of the cellulose-degrading bacteria typically seen in other herbivores. Other scientists argue that some of the microbes in the panda gut might still be highly efficient at breaking down cellulose. They have pointed out that this study only examined microbial composition and not function-and microbes can change function rapidly, making it hard to predict how they perform solely on the basis of the genera of bacteria present.

Question 8 This passage is adapted from Allie Wilkinson, "Panda Guts Not Suited to Digesting Bamboo." ©2015 by Macmillan Publishers Limited. Scientists suggest that the gut bacteria of giant pandas (Ailuropoda melanoleuca) may not have not evolved to efficiently break down cellulose, a hard-to-digest fiber found in the plant walls of bamboo, as previously thought. Ancient giant pandas, which were originally omnivorous, began introducing bamboo into their diet at least 7 million years ago, and eventually switched to eating bamboo exclusively 2.4 million to 2 million years ago. The bears evolved strong jaws and a "pseudothumb" to help them to consume the plant. But unlike other herbivores, they did not develop an elongated digestive tract or enzymes to help break down tough plant parts. Scientists studying the panda gut biome discovered that it is more closely related to that of carnivores, than other herbivores. The scientists found little diversity in the microbes that live in panda guts, and none of the cellulose-degrading bacteria typically seen in other herbivores. Other scientists argue that some of the microbes in the panda gut might still be highly efficient at breaking down cellulose. They have pointed out that this study only examined microbial composition and not function-and microbes can change function rapidly, making it hard to predict how they perform solely on the basis of the genera of bacteria present.

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
See similar textbooks
icon
Related questions
Question
What’s the correct option?
esc Question 8 This passage is adapted from Allie Wilkinson, "Panda Guts Not Suited to Digesting Bamboo." ©2015 by Macmillan Publishers Limited. Scientists suggest that the gut bacteria of giant pandas (Ailuropoda melanoleuca) may not have not evolved to efficiently break down cellulose, a hard-to-digest fiber found in the plant walls of bamboo, as previously thought. Ancient giant pandas, which were originally omnivorous, began introducing bamboo into their diet a t least 7 million years ago, and eventually switched to eating bamboo exclusively 2.4 million to 2 million years ago. The bears evolved strong jaws and a "pseudothumb" to help them to consume the plant. But unlike other herbivores, they did not develop an elongated digestive tract or enzymes to help break down tough plant parts. Scientists studying the panda gut biome discovered that it is more closely related to that of carnivores, than other herbivores. The scientists found little diversity in the microbes that live in panda guts, and none of the cellulose-degrading bacteria typically seen in other herbivores. Other scientists argue that some of the microbes in the panda gut might still be highly efficient at breaking down cellulose. They have pointed out that this study only examined microbial composition and not function-and microbes can change function rapidly, making it hard to predict how they perform solely on the basis of the genera of bacteria present. Which of the following tables accurately reflects the change in pandas' main energy source over the past seven million years as ancient pandas evolved into modern pandas? @ 2 W # 3 $ 4 Ancient pandas Modern pandas % 5 Classification Omnivore Carnivore וום A 6 Main Source(s) of Energy Animals Animals and plants & 7 O * 00 8
Transcribed Image Text:esc Question 8 This passage is adapted from Allie Wilkinson, "Panda Guts Not Suited to Digesting Bamboo." ©2015 by Macmillan Publishers Limited. Scientists suggest that the gut bacteria of giant pandas (Ailuropoda melanoleuca) may not have not evolved to efficiently break down cellulose, a hard-to-digest fiber found in the plant walls of bamboo, as previously thought. Ancient giant pandas, which were originally omnivorous, began introducing bamboo into their diet a t least 7 million years ago, and eventually switched to eating bamboo exclusively 2.4 million to 2 million years ago. The bears evolved strong jaws and a "pseudothumb" to help them to consume the plant. But unlike other herbivores, they did not develop an elongated digestive tract or enzymes to help break down tough plant parts. Scientists studying the panda gut biome discovered that it is more closely related to that of carnivores, than other herbivores. The scientists found little diversity in the microbes that live in panda guts, and none of the cellulose-degrading bacteria typically seen in other herbivores. Other scientists argue that some of the microbes in the panda gut might still be highly efficient at breaking down cellulose. They have pointed out that this study only examined microbial composition and not function-and microbes can change function rapidly, making it hard to predict how they perform solely on the basis of the genera of bacteria present. Which of the following tables accurately reflects the change in pandas' main energy source over the past seven million years as ancient pandas evolved into modern pandas? @ 2 W # 3 $ 4 Ancient pandas Modern pandas % 5 Classification Omnivore Carnivore וום A 6 Main Source(s) of Energy Animals Animals and plants & 7 O * 00 8
B C D Ancient pandas Modern pandas Ancient pandas Modern pandas Ancient pandas Modern pandas Ancient pandas Modern pandas Classification Omnivore Carnivore Classification Carnivore Omnivore Classification Omnivore Herbivore Classification Carnivore Herbivore Main Source(s) of Energy Animals Animals and plants Main Source(s) of Energy Animals Plants Main Source(s) of Energy Plants and animals Plants Main Source(s) of Energy Animals Plants
Transcribed Image Text:B C D Ancient pandas Modern pandas Ancient pandas Modern pandas Ancient pandas Modern pandas Ancient pandas Modern pandas Classification Omnivore Carnivore Classification Carnivore Omnivore Classification Omnivore Herbivore Classification Carnivore Herbivore Main Source(s) of Energy Animals Animals and plants Main Source(s) of Energy Animals Plants Main Source(s) of Energy Plants and animals Plants Main Source(s) of Energy Animals Plants
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Environmental health & hazards
Learn more about
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.
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Biology 2e
Biology 2e
Biology
ISBN:
9781947172517
Author:
Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:
OpenStax
Anatomy & Physiology
Anatomy & Physiology
Biology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:
9780815344322
Author:
Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:
W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:
9781260159363
Author:
Martin, Terry R., Prentice-craver, Cynthia
Publisher:
McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Inquiry Into Life (16th Edition)
Biology
ISBN:
9781260231700
Author:
Sylvia S. Mader, Michael Windelspecht
Publisher:
McGraw Hill Education
SEE MORE TEXTBOOKS