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Biology
4th Edition
ISBN: 9781259188121
Author: Peter Stiling, Robert Brooker, Linda Graham, Eric Widmaier
Publisher: McGraw-Hill Education
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Question
Chapter 54, Problem 1BC
Summary Introduction
To determine: The main threat faced by species today.
Introduction: All living organisms interact with the environment on different levels. An area or the environment where a particular species lives is called its habitat. A species is a group of similar organisms, having the ability to interbreed.
Expert Solution & Answer
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Explanation of Solution
There are almost 8.7 million species in the world. Out of these, 41,415 species are on the IUCN’s (International Union for Conservation of Nature) red list. There are various factors that pose a threat to their existence, such as:
- • Human population growth: The exponential increase in the human population has led to the competition of
resources between humans and animals. - • Global warming and Climate change: The rise in pollution and biomagnifications has led to a rise in global warming. It led to an alteration in breeding and reproduction of many species.
- • Habitat destruction: Humans have encroached on the habitat of many species by building infrastructure and cities.
- • Overexploitation: This involves extensive hunting and fishing of various species for food, medicinal or recreational purposes.
- • Invasive species: With globalization and an increase of human interference, there have been cases where a species has been introduced to a new habitat. The shifted species compete with the native species for resources, and it increases their chances of going extinct.
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session.healthandnutrition-mastering.pearson.com/myct/itemView?assignment ProblemID=17396416&attemptNo=1&offset=prev
10. Your instructor will give you 2 amino acids during the activity session (video 2-7.
A. First color all the polar and non-polar covalent bonds in the R groups of your 2 amino acids
using the same colors as in #7. Do not color the bonds in the backbone of each amino acid.
B. Next, color where all the hydrogen bonds, hydrophobic interactions and ionic bonds could
occur in the R group of each amino acid. Use the same colors as in #7. Do not color the bonds
in the backbone of each amino acid.
C. Position the two amino acids on the page below in an orientation where the two R groups
could bond together. Once you are satisfied, staple or tape the amino acids in place and label
the bond that you formed between the two R groups.
- Polar covalent Bond - Red
- Non polar Covalent boND- yellow
- Ionic BonD - PINK
Hydrogen Bonn - Purple
Hydrophobic interaction-green
O=C-N
H
I.
H
HO
H
=O
CH2
C-C-N
HICK
H
HO
H
CH2
OH
H₂N
C = O
Find the dental formula and enter it in the following format:
I3/3 C1/1 P4/4 M2/3 = 42 (this is not the correct number, just the correct format)
Please be aware: the upper jaw is intact (all teeth are present). The bottom jaw/mandible is not intact. The front teeth should include 6 total rectangular teeth (3 on each side) and 2 total large triangular teeth (1 on each side).
Chapter 54 Solutions
Biology
Ch. 54.1 - Prob. 1EQCh. 54.1 - Prob. 2EQCh. 54.1 - What was the function of the activated carbon used...Ch. 54.2 - Prob. 1CCCh. 54.3 - Prob. 1CCCh. 54.3 - Prob. 2CCCh. 54.3 - Prob. 1BCCh. 54.3 - Prob. 3CCCh. 54.4 - Prob. 1CCCh. 54.5 - Prob. 1CC
Ch. 54.5 - Prob. 2CCCh. 54 - Prob. 1BCCh. 54 - Which of the following is probably the most...Ch. 54 - Prob. 2TYCh. 54 - Prob. 3TYCh. 54 - Physics is to engineering as ecology is to a....Ch. 54 - Prob. 5TYCh. 54 - Prob. 6TYCh. 54 - Prob. 7TYCh. 54 - Prob. 8TYCh. 54 - Prob. 9TYCh. 54 - Prob. 10TYCh. 54 - Prob. 1CQCh. 54 - Prob. 2CQCh. 54 - Prob. 3CQCh. 54 - Prob. 1COQCh. 54 - Based on your knowledge of biomes, identify the...
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