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 20CTQ
Select two items that biologists agree are necessary in order to consider an organism “alive.” For each, give an example of a nonliving object that otherwise fits the definition of “alive.”
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6. The mammalian phylogenies (labeled a and b) were produced by two different research groups.
a. In which tree do phylogenetic relationships most closely align with biogeography and why? (consult the Teeling and Hedges paper)
b. What are the most closely related species to Chiroptera in each tree? Might the use of convergent traits for building phylogenies explain this difference? If so, which tree is most likely to have relied on convergent traits and why?
c. What are some possible reasons that the two research groups came up with different phylogenies (in general terms)? describe at least three possible reasons.
Build a model of a prokaryotic cell using any material of
your choice. In your model be sure to include all the
structures appropriate to your cell. You may model a
bacterial cell or an archaea. You will model at least 4
structures in any model.
Next, build a model of a virus using the same type of
materials. You may choose any type of virus but be sure
you can illustrate the key features of a virus (head shape
for example).
Once complete, take multiple photographs of your models
from all angles. Include these images in a document that
also contains the following completed table format. You
may need to add rows to your table depending on the
type of prokaryote you model.
Structure
Model
Key
Found in
Different in
Function
Virus
Virus
Once your model is complete, write a brief description of
your cell and your virus. Emphasize features that are
absent in viruses that classify them as non-living. You can
refer to specific structures in your table in this
explanation.
Some suggestions for…
(This is a 2-part work, Part 1 is done, only Part 2 is to be worked on at the bottom)Part 1 (Done): Describe the levels of structural hierarchy for the human body, starting with the organismal level and ending with the chemical level. In addition, you should make sure you link each level to the previous level, emphasizing the structural relationships.
The human body is organized into a structural hierarchy that progresses from the macroscopic organismal level down to the microscopic chemical level. Each level builds upon the previous one, creating increasingly complex structures. Below is the hierarchy, from largest to smallest, with explanations linking each level to its predecessor:
1. Organismal Level
The entire living human body.Relationship: All lower levels work together to sustain life at this highest level.
2. Organ System Level
Groups of organs working together to perform major functions.Examples: circulatory, nervous, digestive systems.Relationship: The organismal…
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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- Describe the levels of structural hierarchy for the human body, starting with the organismal level and ending with the chemical level. In addition, you should make sure you link each level to the previous level, emphasizing the structural relationships.arrow_forward9 S es Read the section "Investigating Life: In (Extremely) Cold Blood." Then, drag and drop the terms on the left to complete the concept map. Red blood cells Genes Icefishes -have mutated have colorless Oxygen have few lack encode Blood Cellular respiration consists of- contain carries is a Platelets White blood cells carries low amounts of Hemoglobin is necessary for Plasma Protein Reset.arrow_forwardPlating 50 microliters of a sample diluted by a factor of 10-6 produced 91 colonies. What was the originalcell density (CFU/ml) in the sample?arrow_forward
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