EBK BIOLOGY
EBK BIOLOGY
11th Edition
ISBN: 8220101459800
Author: Byers
Publisher: PEARSON
bartleby

Concept explainers

bartleby

Videos

Textbook Question
Book Icon
Chapter 25, Problem 1MC

The two groups of mammals with the largest number of species are

a. marsupials and monotremes.

b. carnivores and whales.

c. bats and rodents.

d. apes and lampreys.

Expert Solution & Answer
Check Mark
Summary Introduction

Introduction:

Mammals are the part of Chordata taxonomic group as they possess distinctive characteristics like presence of notochord. Mammals are named due to the presence of mammary glands that secretes milk to feed newborns. There are numerous groups in the mammals based on specific characteristics, each containing numerous species of the mammals.

Answer to Problem 1MC

Correct answer:

The two groups of mammals with the largest number of species are bats and rodents.

Explanation of Solution

Explanation for the correct answer:

Option (c) is given that the two groups of mammals with the largest number of species are bats and rodents. Rodents constitute almost 40% of the mammal population while bats constitute around 20% of the mammal population. These two groups consist of 60% of the mammal population. Hence, option (c) is correct.

Explanation for incorrect answers:

Option (a) is given that the two groups of mammals with the largest number of species are marsupials and monotremes. There are only five species of monotremes in the world while only 330 species of marsupials. Most of the marsupials are situated in Australia. So, it is an incorrect option.

Option (b) is given that the two groups of mammals with the largest number of species are carnivores and whales. Carnivores belong to various groups and are not limited to the mammals. There are only 70% species of whales. Even with the large sizes, the actual numbers of these animals are small as compared to 60% population of bats and rodents. So, it is an incorrect option.

Option (d) is given that the two groups of mammals with the largest number of species are apes and lampreys. Apes are found in forests and most of the apes are endangered species. Their number is much less compared to a number of rodents and bats. Lampreys are a group of vertebrates. They do not belong to mammals. So, it is an incorrect option.

Hence, options, (a), (b), and (d) are incorrect.

Conclusion

Therefore, it can be concluded that the two groups of mammals with the largest number of species are bats and rodents.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
The shape of radishes may be long (SL/SL), oval (SL/SS), or round (SS/SS), and the color of radishes may be red (CR/CR), purple (CR/CW) or white (CW/CW).  If a long, red radish plant is crossed with a round, white plant, what will be the appearance of the F1 and F2 generations?
None
Question #3: In the KeyGene paper, the authors state that it would be useful if pollen from an apomict would transmit apomixis-inducing genes to the female in the cross (assuming the pollen is viable). Assuming there was just one gene conferring gametophytic obligate apomixis, and that the two parents are inbreds, what would be the consequences of such a cross if: a) The apomixis was a dominant trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the parental cross. b) The apomixis was a recessive trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the…
Knowledge Booster
Background pattern image
Biology
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.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Text book image
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Text book image
Science Of Agriculture Biological Approach
Biology
ISBN:9780357229323
Author:Herren
Publisher:Cengage
Text book image
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Biology
ISBN:9781305967359
Author:STARR
Publisher:CENGAGE L
Text book image
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Text book image
Nutrition Now
Health & Nutrition
ISBN:9781337415408
Author:Brown
Publisher:Cengage
FOSSIL FRIDAY: Primate Evolution | Grades 7-10; Author: Museum of the Rockies;https://www.youtube.com/watch?v=9tVLfvm3AFk;License: Standard YouTube License, CC-BY