Loose-leaf Version for What Is Life? A Guide to Biology 4E & LaunchPad for What is Life? A Guide to Biology 4E (Twelve Month Access)
4th Edition
ISBN: 9781319154639
Author: Jay Phelan
Publisher: W.H. Freeman & Co
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Chapter 18, Problem 4MC
Summary Introduction
Introduction:
Biologists have been unable to narrow down the number of species on earth, accurately.
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Since 1735, the Linnaean classification system has been the basic system for all taxonomy in biology. Which statement best explains the reason for changing how organisms are classified today?
A. Organisms are evolving at a faster rate than in the past
B. More diverse and complex organisms are being discovered
C.  There are more organisms today than there were in the past
D. New information about the genetics of species is being discovered
In terms of classification of organisms, it can be said that the living things on Earth are very
A. dangerous B. deceptive C. developed D. diverse.
The next lower level of classification, immediately following phylum is
A. kingdom B. order C. class D. species.
The next higher level of classification, immediately following family is
A. species B. genus C. class D. order.
Human beings are called Homo sapies; here, “Homo” represents A. genus
B. species C. class D. kingdom.
Organisms belonging to the same species usually interbreed with one another. Exceptions to this can be found in some
A. reptiles B. mammals C. plants D. vertebrates
People studying fossils have to employ which of the following species concepts?
a.
The Morphospecies Concept
b.
The Biological Species Concept
c.
The Phylogenetic Species Concept
d.
The Physical Species Concept
Chapter 18 Solutions
Loose-leaf Version for What Is Life? A Guide to Biology 4E & LaunchPad for What is Life? A Guide to Biology 4E (Twelve Month Access)
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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
- According to "The Complex Evolution of Homo sapiens”, what two major things (or pieces of evidence) confirm that our species evolved in Africa? A.History Textbooks B.Genetics C.Fossil Record D.B and C Only E.A, B and Carrow_forwardWhich of the following illustrates the correct way to presentthe scientific name of humans?a. Homo Sapiens c. homo sapiensb. Homo sapiens d. Homo sapiensarrow_forwardIn the evolutionary tree below, which of the five nodes corresponds to the most recent common ancestor of sea stars and yeast? A. node A B. node B C. node C D. node D E. node E I need help please!!!!arrow_forward
- 1. Which describes the modern classification system?a. based on evolutionary relationshipsb. called Linnean classificationc. based on similar appearancesd. called Darwinian classification2. If two organisms are in the same clade, what can you predict about theirrelationship?a. They are not closely related.b. They share a common ancestor.c. They compete for resources.d. One organism evolved into the other organism. 3.Which best describes traditional classification?a. It is based on shared characteristics.b. It is based on evolutionary relationships.c. It is called phylogenetic classification.d. It is called cladisticsarrow_forwardAn octopus and an owl both have large eyes with similar structures. If their most recent common ancestor lacked eyes what is the reason for the similarity? Group of answer choices a. genetic drift b. convergent evolution c. mutation d. homology e. gene flowarrow_forwardWhich of the following statements about the fossil record is true? a. The fossil record is a complete accounting of life on earth b. The fossil record is unbiased in the fossils that are found c. The fossil record is evenly sampled across all of life's history on earth d. There are certain biases in the fossil recordarrow_forward
- Which of the following is a characteristic of species found on oceanic islands? Group of answer choices A. they are often found nowhere else but are close relatives of species on continents B. they are widespread species found over most of the earth C.they are very large and not able to swim D. they are completely unique and not closely related to other species elsewherearrow_forwardSpecies can vary in several ways. Which of the following is one of Darwin’s ideas that was accepted by most scientists of his time due to the large number of fossils being discovered at that time? A. Species that live in seawater can also live on mountains. B. Species have specific adaptations to their local environment. C. Species vary around the world. D. Species change over long periods of time.arrow_forwardWhat does the circled part of the phylogenetic tree below indicate? Select one: A. An adaptive radiation B. A mass extinction event C. Rapid speciation D. A and/or C E. all of the abovearrow_forward
- Which of the following assumptions is not part ofcladistics?a. A lineage’s characters change over time.b. All species share common ancestry.c. Each lineage branches from another lineage.d. Similar body parts are evidence of a recentdivergencearrow_forwardWhat is not always true of a valid binomial species name like Homo sapiens? A. It includes the genus name B. It is the first published name applied to the biological species C. It is defined by autapomorphic character states D. Technically, it consists of a noun and an adjective asaparrow_forwardThis video refers to Denisovans as a “Ghost Lineage.” In fact, Denisovans don’t even have a formal scientific name. What is the physical evidence that anthropologists need to further define and understand the Denisovans? A. None of the above B. A Type Specimen (and more Denisovan fossils) C. Neanderthal DNA D. H. sapiens DNAarrow_forward
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