Concepts of Biology
1st Edition
ISBN: 9781938168116
Author: Samantha Fowler, Rebecca Roush, James Wise
Publisher: OpenStax College
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 21, Problem 2RQ
The number of currently described species on the planet is about ________.
a. 17,000
b. 150,000
c. 1.5 million
d. 10 million
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Which is not a factor that leads to the extinction of a species?
A. disease
b. individuals
c. genetic mutations
d. adapatation
e. climate
Secondary contact after divergence rarely results in?
A. creation of a hybrid zone
B. formation of a new species
C. the rapid decline of both populations
D. extinction of one population
The number of currently described species on the planet is about ________.a. 17,000b. 150,000c. 1.5 milliond. 10 million
Chapter 21 Solutions
Concepts of Biology
Ch. 21 - Figure 21.6 The Svalbard seed vault is located on...Ch. 21 - The number of currently described species on the...Ch. 21 - A secondary plant compound might be used for which...Ch. 21 - Pollination is an example of ________. a. a...Ch. 21 - Converting a prairie to a farm field is an example...Ch. 21 - Which two extinction risks may be a direct result...Ch. 21 - What kind of ecosystem are exotic species...Ch. 21 - Certain species of parrot cannot be brought to the...Ch. 21 - What is the name of the first international...Ch. 21 - Explain how biodiversity loss can impact crop...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Using values from Table 7.1, how many DNA molecules could be broken by the energy carried by a single electron ...
College Physics
In a family with one autistic child the risk for another affected child is approximately 25 percent. This is th...
Concepts of Genetics (11th Edition)
True or false? Some trails are considered vestigial because they existed long ago.
Biological Science (6th Edition)
Why is an endospore called a resting structure? Of what advantage is an endospore to a bacterial cell?
Microbiology: An Introduction
7. Both Tim and Jan (problem 6) have a widow’s peak (see Module 9.8), but Mike has a straight hairline. What ar...
Campbell Biology: Concepts & Connections (8th Edition)
Knowledge Booster
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
- Speciation: A. is a process by which populations of one species diverge genetically and which produces one or more new species B. is the result of minor extinction events C. only results from interspecific hybridization D. is completed when two different species are able to interbreed E. always takes millions of yearsarrow_forwardSpeciation on islands is influenced by a) island gigantism b) adaptive evolution c) variation in species d) reproductive successarrow_forwardThe pupfishes in the Death Valley region are an example of which evolutionary process? (a) background extinction (b) allopatric speciation (c) sympatric speciation (d) allopolyploidy (e) paedomorphosisarrow_forward
- Mutation (a) leads to adaptive evolutionary change (b) adds to the genetic variation of a population (c) is the result of genetic drift (d) almost always benefits the organism (e) a and barrow_forwardmountain range separates a population of gorillas. After many generations, the gorillas on different sides of the mountain range cannot produce viable, fertile offspring. What has happened? a. Sympatric speciation c. Parapatric speciation b. Allopatric speciation d. Adaptive radiationarrow_forwardNinety-nine percent of all the species that ever existed have gone extinct, a. serving as evidence that current extinction rates are not higher than normal. b. but most of these losses have occurred in the last 400 years. c. which argues that the world just had too many species. d. None of the choices is correct.arrow_forward
- Match the terms with the most suitable description. ______data a. if–then statement ______probability b. unique type of organism ______species c. experimental results ______hypothesis d. testable explanation ______prediction e. measure of chance ______producer f. makes its own foodarrow_forwardOptions are a. Hybrid offspring. b. Speciation c. Adaptive radiation. d. Mechanical isolation.arrow_forwardMultiple choice (one answer is correct) a.Frogs are more closely related to birds than they are to dogs and humans b.None of the above are accurate c.Frogs are more closely related to fish than they are to humans d.Fish are the ancestral species of the remaining four taxa e.Frogs and humans are equally related to fisharrow_forward
- Which factor most likely caused animals and plants in India todiffer greatly from species in nearby southeast Asia?(A) The species became separated by convergent evolution.(B) The climates of the two regions are similar.(C) India is in the process of separating from the rest of Asia.(D) India was a separate continent until 45 million years ago.arrow_forwardThe divergent evolution of these cichlid fish is an example of what type of speciation? a.) coevolution b.) mutation c.) adaptive radiation d.) convergent evolutionarrow_forwardDo you think it is important that all species be prevented from going extinct? Explain your reasoning. Also, there is a process called “de extinction” where scientist use DNA from an extinct species and genetically “recreate” that species. Do you think this is a good idea? Explain you reasoning.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Phylogeny and the Tree of Life; Author: Professor Dave Explains;https://www.youtube.com/watch?v=KLMn4XwS8Tw;License: Standard YouTube License, CC-BY