Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 1, Problem 11RQ
Viruses are not considered living because they ___________ .
a. are not made of cells
b. lack cell nuclei
c. do not contain DNA or RNA
d. cannot reproduce
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Viruses are not considered living because they ________. a. are not made of cells b. lack cell nuclei c. do not contain DNA or RNA d. cannot reproduce
Viruses consist of either DNA or RNA wrapped inside a protein coat. Are viruses considered alive?
A.
Yes, because they contain DNA.
B.
Yes, because they contain DNA and proteins.
C.
No, because they lack carbohydrates and lipids.
D.
No, because some viruses use RNA as the main genetic molecule.
Viruses are not considered living things becausea. they are not cells c. they lack metabolismb. they cannot reproduce by themselves d. All of these are correct.
Chapter 1 Solutions
Biology 2e
Ch. 1 - Figure 1.6 In the example below, the scientific...Ch. 1 - Figure 1.7 Decide if each of the following is an...Ch. 1 - Figure 1.16 Which of the following statements is...Ch. 1 - The first forms of life on Earth were plants...Ch. 1 - A suggested and testable explanation for an event...Ch. 1 - Which of the following sciences is not considered...Ch. 1 - The type of logical thinking that uses related...Ch. 1 - The process of helps to ensure that a scientist’s...Ch. 1 - A person notices that her houseplants that are...Ch. 1 - The smallest unit of biological structure that...
Ch. 1 - Viruses are not considered living because they...Ch. 1 - The presence of a membrane-enclosed nucleus is a...Ch. 1 - A group of individuals of the same species living...Ch. 1 - Which of the following sequences represents the...Ch. 1 - Where in a phylogenetic tree would you expect to...Ch. 1 - Although the scientific method is used by most of...Ch. 1 - Give an example of how applied science has had a...Ch. 1 - Name two topics that are likely to be studied by...Ch. 1 - Thinking about the topic of cancer, write a basic...Ch. 1 - Select two items that biologists agree are...Ch. 1 - Consider the levels of organization of the...Ch. 1 - You go for a long walk on a hot clay. Give an...Ch. 1 - Using examples, explain how biology can be studied...
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- ________ can have a genome of either RNA or DNA. a. Bacteria b. Eukaryotes c. Viruses d. Archaeaarrow_forwardWhich of the following refer/s to viruses? A. They are disease-causing. B. They contain DNA or RNA. C. They must have protection for their own genetic material. D. They are parasitic. A, B, C only A, B, C, D A, C, D B, C, Darrow_forwardVirusesa. have DNA confined in a nucleus.b. are relatively rare compared to living organisms.c. do not evolve.d. may be surrounded by plasma membrane from their host cell.arrow_forward
- viruses and human health is false? a- in many diseases caused by viruses, the virus attacks cells as it reproduces b- many viral diseases can be controlled through vaccinations c- some viruses can remain dormant in the body for years before disease symptoms appear d- most viral infections are difficult to treat, but they can be finally destroyed by antibioticsarrow_forwardIn the case of the Ebola outbreak in the Democratic Republic of the Congo (then called Zaire) in 1976, how did the virus first transmit to humans? A. A teacher ate a wild bat B. A teacher ate a wild antelope C. Scientists are still unsure D. A mosquito bit a teacherarrow_forwardIn the case of the Ebola outbreak in the Democratic Republic of the Congo (then called Zaire) in 1976, how did the virus first transmit to humans? A. A mosquito bit a teacher B. Scientists are still unsure C. A teacher ate a wild antelope D. A teacher ate a wild batarrow_forward
- Which statement is TRUE? A Viruses are not living things because they don’t have DNA. B Viruses are not living things because they cannot reproduce. C Viruses are not living things because they don’t have organelles. D Viruses are not living things because they are too small to be alive.arrow_forwardEukaryotes are most closely related to _______. a. archaea b. bacteria c. retrovirusesarrow_forwardThe first forms of life on Earth were thought to be_____. a. single-celled plants b. prokaryotes c. insects d. large animals such as dinosaursarrow_forward
- How are viruses different from bacteria? a. Viruses lack enzymes for protein synthesis b. Viruses need host cells to survive c. Viruses are obligate intracellular parasites d. All viruses are smaller than bacteria e. Viruses contain DNA or mRNA but neither botharrow_forwardViruses are considered nonliving because Select one: A. They do not locomote. B. They can reproduce independently. C. Their nucleic acid does not code for protein. D. They are noncellular.arrow_forwardChoose the combination of answers that most accurately completes the statement.Viruses are not considered living things because a. they are not cells b. they cannot reproduce by themselves c. they lack metabolism d. All of these are correctarrow_forward
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Prokaryotic vs. Eukaryotic Cells (Updated); Author: Amoeba Sisters;https://www.youtube.com/watch?v=Pxujitlv8wc;License: Standard youtube license