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Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
12th Edition
ISBN: 9780135755785
Author: Gerald Audesirk, Teresa Audesirk
Publisher: PEARSON+
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Chapter 1, Problem 2AC
Summary Introduction
To determine:
That how the definition of life need to be altered to allow viruses and prions to qualify as living forms or alive.
Introduction:
Life differentiates a living being from the nonliving things on the basis of some characteristics. Organisms that could reproduce, grow, multiply or sense along with could collectively evolve and could acquire energy are considered as living forms. All living forms comprise all these characteristics.
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What is life? Why are viruses not considered alive? What other things can you think of that are not alive but might be almost alive?
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Why are viruses not considered living organisms?
Chapter 1 Solutions
Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
Ch. 1.1 - Describe the source of the energy stored In the...Ch. 1.1 - Prob. 1CYLCh. 1.1 - How does evolution occur in Viruses and organisms?Ch. 1.2 - The largest dinosaurs were plant-eaters. Based on...Ch. 1.2 - Prob. 1CYLCh. 1.2 - Prob. 2CYLCh. 1.2 - describe how species arise and how they become...Ch. 1.3 - Which level of organization would be most...Ch. 1.3 - Prob. 1CYLCh. 1.3 - Prob. 2CYL
Ch. 1.3 - Prob. 3CYLCh. 1.4 - Prob. 1TCCh. 1.4 - Fruit flies, bacteria from hot springs, sea...Ch. 1.4 - describe the principles underlying science?Ch. 1.4 - outline the scientific method?Ch. 1.4 - explain why controls are crucial in biological...Ch. 1.4 - explain why fundamental scientific principles are...Ch. 1.4 - The Boundaries of Life If viruses aren't a form of...Ch. 1 - Evolution is a. a belief. b. a scientific theory....Ch. 1 - Prob. 2MCCh. 1 - Prob. 3MCCh. 1 - Prob. 4MCCh. 1 - Which one of the following is True? a. The...Ch. 1 - Prob. 1FIBCh. 1 - Prob. 2FIBCh. 1 - Prob. 3FIBCh. 1 - Prob. 4FIBCh. 1 - Prob. 5FIBCh. 1 - Prob. 1RQCh. 1 - Prob. 2RQCh. 1 - Define evolution, and explain the process of...Ch. 1 - Prob. 4RQCh. 1 - What are some differences between prokaryotic and...Ch. 1 - What basic principles underlie scientific inquiry?Ch. 1 - Prob. 7RQCh. 1 - Prob. 8RQCh. 1 - List the steps in the scientific method with a...Ch. 1 - What misunderstanding causes some people to...Ch. 1 - Prob. 2ACCh. 1 - Review Alexander Flemings experiment that led to...Ch. 1 - Prob. 4ACCh. 1 - Prob. 5AC
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- According to the seven characteristics of life (1- composed of one or more cells, 2- compelx and organized, 3- respond to environment, 4- grow, develop, and reproduce, 5- obtain and use energy, 6- mainatin homeostasis, 7- allow for evolutionary adaptation), are viruses alive?arrow_forwardWhy are viruses are not regarded as true living cells?arrow_forwardWhich description below describes viruses? acellular, made of protein capsid which protects viral genetic informaion, either DNA or RNA but not bo O acelluar, eukaryotes, Domain Archaea O cellular, eukaryotes, Domain Eukarya O acellular, prokaryotes, Domain Bacteria Question 14 Your lab partner wants to know the reasons viruses are not considered cells. You provide all the following reasons EXCEPT you make one mistake. Which statement below is FALSE with regard to why viruses are not considered cells?arrow_forward
- Which of the following self-replicating biological agents carries only one polynucleotide chain as its genetic material, does not code for any proteins, and does not have any nucleocapsid? the RNA virusoid known as hepatitis delta virusoid the single-stranded RNA virus known as human immunodeficiency virus the double-stranded RNA virus known as rotavirus the double-stranded DNA virus known as pandoravirus the RNA viroid known as citrus exocortis viroid The human precancerous disorder known as xeroderma pigmentosum is caused by which of the following mutagenic conditions? thymine dimers demethylation deacetylation depurination deamination 7. Who discovered that DNA synthesis in the intact chromosomes of rapidly-growing bacterial cells is continuous on the leading strand, but discontinuous on the lagging strand? Rosalind Franklin and Maurice Wilkins Matthew Meselson and Franklin Stahl Erwin Chargaff and Arthur Kornberg Reiji Okazaki and Tuneko Okazaki James Watson and…arrow_forwardWhat do you mean by prions?arrow_forwardAll the followings are biological acellular entities except: a) Bacteriophages b) Bacteria c) Viroid d) Virions e) Prionsarrow_forward
- Which of the following is inconsistent with the central dogma? a) An RNA molecule that can self-replicate b) A chromosome that is duplicated before cell division c) A protein that converts its own amino acid sequence into a DNA sequence d) A retrovirus (e.g. HIV) that transcribes its RNA genome into DNA inside its host e) A gene being translated into a proteinarrow_forwardUse the information to answer the following question. Two students were debating whether viruses are living or nonliving. Student A: Viruses are living because they contain DNA or RNA and reproduce. Student B: Viruses are nonliving because they do not grow and do not use energy. Which student's claim is correct and why? O A. Student B, because viruses do not use or make energy. Even though they contain DNA and RNA, many other non-living things also contain DNA and RNA. O B. Student B, because viruses do not grow and do not use energy. Although they have DNA and RNA, they are only able to reproduce with a host cell. O C. Student A, because viruses are able to reproduce and continue to spread their disease to other hosts. As the virus becomes more dangerous, it grows and becomes larger. O D. Student A, because all living things must have DNA or RNA. They must use energy in order to reproduce and make more viruses.arrow_forwardAs a general rule, viruses are not considered to be alive based on several reasons. One such reason is that some viruses use RNA as their genetic material instead of DNA. Which of the five biological themes does this violate? Briefly explain why.arrow_forward
- Lacking ribosomes, how can viruses be placed on the universaltree of life?arrow_forwardWhat is the origin (or origins) of viruses? Is there evidence that viruses have multiple origins? Show us the evidence.arrow_forwardWhich of the following is inconsistent with the central dogma? a) An RNA molecule that can self-replicate O b) A chromosome that is duplicated before cell division Oc) A protein that converts its own amino acid sequence into a DNA sequence O d) A retrovirus (e.g. HIV) that transcribes its RNA genome into DNA inside its host O e) A gene being translated into a proteinarrow_forward
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What Is A Virus ? ; Author: Peekaboo Kidz;https://www.youtube.com/watch?v=YS7vsBgWszI;License: Standard YouTube License, CC-BY