Biology: Life on Earth with Physiology (11th Edition)
11th Edition
ISBN: 9780133923001
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 27.5, Problem 1CSR
Summary Introduction
To determine:
Whether the elephant seals, regardless of their abundance should be considered as potentially endangered in the foreseeable future or not.
Introduction:
The population of elephant seal experiences both density-independent as well as density-dependent environmental resistances. The elephant seals are the almost genetically identical species and any adverse changes can affect the entire population to a similar degree.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Not use ai please
A
B
C
D
E
Agnatha
Chondrichthyes
Sarcopterygii
Amphibia
Reptilia
Mammalia
Match the derived characters with the correct taxa based on the phylogenetic tree
above. Note that some taxa are omitted from this chordate tree.
く
True tetrapod limbs
1. A
✓
Lactation
2. B
V
Complete bony skeleton
3. C
4. D
V
Amniotic Egg
>
5. E
Movable jaws
Identify the true statement(s) in reference to the food web below. Arrows indicate
flow of energy; shapes indicate different populations. CHOOSE ALL THAT ARE
CORRECT.
D
E
B
☐ A decrease in Species A and B would probably cause a decrease in Species E
Species F is a decomposer.
A decline in Species C would decrease competition in Species D and E.
A decline in Species C would, via bottom-up control, regulate Species A.
A decrease in Species A might not result in a long-term decline of Species C
because of functional redundancy.
Question 28 (Mandatory) (2 points)
Why is prey productivity always more than predator productivity?
う
#
80
F3
Ơ
F4
E
$
%
5
#4
R
DII
F5
8
F6
F7
F8
F9
F10
ト
1
6
7
27
*
=
80
9
0
Chapter 27 Solutions
Biology: Life on Earth with Physiology (11th Edition)
Ch. 27.1 - Prob. 1CSCCh. 27.1 - Prob. 1CYLCh. 27.1 - Prob. 1HYEWCh. 27.1 - The Return of the Elephant Seals Female elephant...Ch. 27.1 - Prob. 2CYLCh. 27.1 - Prob. 3CYLCh. 27.2 - Prob. 1CSCCh. 27.2 - Prob. 1CYLCh. 27.2 - Prob. 1TCCh. 27.2 - Prob. 2CYL
Ch. 27.2 - What factors might make these population data...Ch. 27.2 - Prob. 3CYLCh. 27.2 - What benefits does mass emigration give to animals...Ch. 27.3 - Prob. 1CYLCh. 27.3 - Prob. 2CYLCh. 27.4 - describe the three types of spatial distribution...Ch. 27.5 - Prob. 1CSRCh. 27.5 - describe the advances that have allowed...Ch. 27.5 - Prob. 1TCCh. 27.5 - explain why rapid population growth continues...Ch. 27.5 - Prob. 2TCCh. 27.5 - Prob. 3CYLCh. 27.5 - Prob. 3TCCh. 27.5 - Prob. 4CYLCh. 27 - Research a developing country (such as Nigeria,...Ch. 27 - Prob. 1FIBCh. 27 - Prob. 1MCCh. 27 - Prob. 1RQCh. 27 - Prob. 2ACCh. 27 - The type of growth that occurs in a population...Ch. 27 - Prob. 2MCCh. 27 - Prob. 2RQCh. 27 - Prob. 3FIBCh. 27 - Prob. 3MCCh. 27 - Draw, name, and describe the properties of a...Ch. 27 - Prob. 4FIBCh. 27 - Prob. 4MCCh. 27 - Prob. 4RQCh. 27 - Prob. 5FIBCh. 27 - Prob. 5MCCh. 27 - What is logistic population growth? What is K?Ch. 27 - Prob. 6RQCh. 27 - Distinguish between populations showing concave...Ch. 27 - Explain why environmental resistance has not...Ch. 27 - Prob. 9RQCh. 27 - Prob. 10RQ
Knowledge Booster
Learn more about
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
- Put the steps of eutrophication in order. Algae sink to the bottom. Nutrients enter a lake; algae productivity increases. Decomposition increases rapidly. Biological (Biochemical) Oxygen Demand rises. Heterotrophic species die. Dissolved oxygen plummets. Algae exceed K as light becomes limiting. estion 33 (Mandatory) (2 points)arrow_forwardA certain morphological trait is used to construct a phylogenetic tree of three species (1, 2, and 3). Match each scenario with the correct corresponding tree. Species 1: No Species 2: Yes 1 1. 2 Species 3: Yes 3 Species 1: Yes 3 2. Species 2: Yes 2 1 Species 3: No 1 3. Species 1: Yes 3 2 Species 2: No Species 3: Yes Review Stuff Question 26 (Mandatory) (4 points) Species diversity is sometimes maintained or facilitated by... (CHOOSE ALL THAT ARE CORRECT). ر 8 DII 8 A 510 E F11 3 € F12arrow_forwardUse the picture below to identify ALL the correct statements. Note: (a) is on the top; (b) is on the bottom. Lizard Bird Mammal (a) Mammal-bird clade Four-chambered heart Lizard Bird Mammal Four-chambered (b) Lizard-bird clade SO heart Four-chambered heart According to (a), birds evolved from mammals. With respect to the number of heart chambers, (a) is more parsimonious than (b). According to (b), birds and lizards more recently shared a common ancestor than mammals and birds. According to (a), birds and mammals more recently shared a common ancestor than birds and lizards. The current thinking is that (b) is more correct than (a). Question 15 (Mandatory) (2 points) F4 a F5 응 85 6 A F6 &7 DII DD A F7 F8 F9 F10 80 9 ) O F11 Ŷ E + F12 deletearrow_forward
- (F24) 9 12 15 18 19 2:1 21 21 24 く く An odd number of chromosomes in a hybrid renders its sperm inviable. Cichlid occupying different zones in Lake Victoria. 21 27 One population of pine C く く く ☑ trees releases pollen in March; the other in August. Sperm cannot be transferred due to the incompatibility of genitals. Two fruit fly species that use different host plants for breeding and larval development. One plant is pollinated by bees; the other by butterflies. Some mosquitoes pupate in the summer; others in fall. Gametes from two different sea urchin species are genetically incompatible. Different songs in closely- related bird species. One salmon species spawns in Alaska systems; the other 1. Behavioral isolation 2. Mechanical isolation 3. Temporal isolation 4. Habitat isolation 5. Gametic isolation 6. Post-zygotic isolationarrow_forwardThe last one says: allows for specialization in breakdown and absorption of foodarrow_forwarda) Draw a DNA replication fork and label the polarity of your DNA (you decide which strand is 3’à5’ and 5’à3) and label the leading and lagging strand. Depict the helicase, topoisomerase, and SSBPs doing their jobs in early DNA replication as well as a primase on each strand laying down an RNA primer. b) Describe the main jobs of each of the following enzymes in the coli model of replication: DNA Polymerase I 2. DNA Polymerase II 3. DNA Polymerase IIIarrow_forward
- a) Use the codon chart to translate the following mRNA codons into amino acids: AUG GUU AAC CAG UGA b) How do mRNA and rRNA interact? c) How do mRNA and tRNA interact?arrow_forwarda. Describe the replisome b. What is the “end problem of linear chromosomes” and what enzymeis used by some cells get around this issue? c. Draw the rough shape of the sliding clamp. What is the point of this protein?arrow_forwarda) What role do transcription factors play in transcription? b) Describe mRNA splicing.arrow_forward
- a) What are two differences between DNA and RNA? b) Does RNA have polarity? c) Describe how tRNA is charged with an amino acid. d) What is an anticodon and where is it located on the tRNA structure?arrow_forwardRenota, a 51-year-old Slavic woman, lived in Romania with her family on a pig farm. She routinely slaughtered pigs and cooked pork for family meals. She had a wide variety of recipes that called for pork. A few days after preparing one of her famous pork dishes, Renota experi- enced diarrhea, abdominal pain, and chronic indigestion. She went to her family physician and explained her symp- toms to him. The physician, who knew the family well and was familiar with the family business, immediately sus- pected a bacterial or parasitic infection. A stool sample for routine bacterial culture and 0&P study was collected from Renota and submitted to the local diagnostic laboratory. Routine processing procedures were conducted on the stool sample. Gross examination of the stool revealed a portion of the infecting worm (Fig. A). An egg, measuring 36 by 25 um (Fig. B), was seen on the permanent 0&P slide. No intestinal bacterial pathogens were isolated. Questions and Issues for…arrow_forwardWhat thoughts after reading this: "The cases of Henrietta Lacks and the Tuskegee Syphilis Experiment call attention to ethical violations in medical research, particularly involving underrepresented groups. Both instances raise important issues around informed consent, exploitation, and the responsibility of researchers. Biomedical ethics is grounded in principles like autonomy, beneficence, and justice. In both the Lacks case and the Tuskegee study, these principles were ignored. Henrietta Lacks’ cells were taken without her consent, and the men in the Tuskegee study were denied treatment without their knowledge. These failures in ethical oversight have caused lasting harm to the trust marginalized communities have in the medical system. Institutional Review Boards (IRBs) are designed to ensure ethical standards in research by requiring informed consent and protecting participants from harm. However, in Lacks’ case and the Tuskegee study, no such protections were in place. These…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology: The Unity and Diversity of Life (MindTap...BiologyISBN:9781305073951Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa StarrPublisher:Cengage Learning
Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning
Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
Biology: The Unity and Diversity of Life (MindTap...
Biology
ISBN:9781305073951
Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning