ETEXT CAMPBELL BIOLOGY IN FOCUS INSTANT
3rd Edition
ISBN: 9780135964422
Author: Urry
Publisher: PEARSON
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Chapter 23.4, Problem 2CC
Summary Introduction
To describe:
An evolutionary trend (in either rabbit or virus) that might occur after a rabbit population first encounters the Myxoma virus.
Introduction:
Myxoma virus is a virus that infects rabbits. It causes myxomatosis in rabbits. This virus was used as a pest control in Australian subcontinent. This virus is very much effective against the host that is it can very easily evade the immune mechanism of hares and rabbits. It causes localized benign fibromas in rabbits and hares.
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Discussion Thread :
Ever wondered why mosquitoes exist? Everyone knows they serve as vectors for many illnesses (malaria, yellow fever and dengue fever to name a few)....but do they serve any "useful" purpose?
Yes, they do!
"The bizarre and Ecologically Important Hidden Lives of Mosquitoes" (https://theconversation.com/the-bizarre-and-ecologically-important-hidden-lives-of-mosquitoes-127599)
Please comment on one surprising fact you learned from this article and explain in a few sentences.
1. Ebola virus, a dangerous outbreak was found to have occurred due to possible transmission of virus from bats and the contact of contaminated bodily fluids such as blood, urine, etc. Therefore, such a devastating disease outbreak around the world which initially broke in West Africa that along with acute poverty went through lack of proper healthcare, transportation, communication and resources, made it difficult for public health in bringing a quicker solution against it, hence spreading faster. I think to prevent similar pandemics in the future, countries especially with low economies should be prepared with potential resources to combat a health emergency. Moreover, international countries should intervene by investing in African healthcare systems, especially in places suffering from extreme poverty, to build stronger and accessible health care that provides treatment for its residents (Matua et al., 2015). Local Public health officials should visit certain vulnerable places and…
4
Chapter 23 Solutions
ETEXT CAMPBELL BIOLOGY IN FOCUS INSTANT
Ch. 23.1 - Describe an example from the fossil record that...Ch. 23.1 - Your measurements indicate that a fossilized skull...Ch. 23.1 - WHAT IF? What might a fossil record of life today...Ch. 23.2 - Explain the consequences of plate tectonics for...Ch. 23.2 - Prob. 2CCCh. 23.2 - What factors promote adaptive radiations?Ch. 23.2 - Prob. 4CCCh. 23.3 - Explain how new body forms can originate by...Ch. 23.3 - Why is it likely that Hox genes have played a...Ch. 23.3 - MAKE CONNECTIONS Given that changes in morphology...
Ch. 23.4 - How can the Darwinian concept of descent with...Ch. 23.4 - Prob. 2CCCh. 23 - Which factor most likely caused animals and plants...Ch. 23 - Adaptive radiations can be a direct consequence of...Ch. 23 - A researcher discovers a fossil of what appears to...Ch. 23 - A genetic change that caused a certain Hox gene to...Ch. 23 - A swim bladder is a gas-filled sac that helps fish...Ch. 23 - SCIENTIFIC INQUIRY Herbivory (plant eating) has...Ch. 23 - FOCUS ON EVOLUTION Describe how gene flow, genetic...Ch. 23 - FOCUS ON ORGANIZATION You have seen many examples...Ch. 23 - SYNTHESIZE YOUR KNOWLEDGE In 2010, the Soufriere...
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- 3. In this problem you will create, and then consider, a model for the effect of influenza and pneumonia on the population of large US cities over a two-year-period. (a) The figure below is taken from [5]. Sketch on the figure, or on some axes drawn on your own page, a smooth curve that describes the “average behaviour” of the two curves shown in the figure. (b) Based on your sketch in part (a), or otherwise, make a model of the death rate due to influenza and pneumonia in large cities in the USA for the two-year-period beginning 3 August 1934. Your model should be in the form of a function. In making your model, you may have to make assumptions and/or choices. Briefly justify each assumption and choice.arrow_forwardWhich condition is the basis for a species to be re productively isolated from other members? It does not share its habitat with related species It does not exist out of a single habitat It does not exchange genetic information with other species It does not undergo evolutionary changes for a significant period of time.arrow_forwardQ1: Which is the faster way to produce vaccines: biopharming with plants or creating vaccines in eggs? Why is this important? Q2: How much cheaper is biopharming with plants than creating vaccines in eggs? Why is this important? Q3: Why must tobacco-derived vaccines, or any new medications for that matter, be approved by the FDA?arrow_forward
- 2. According to the recent malaria report of the Department of Health, Disease and Prevention Bureau (2022), there are 4, 251 confirmed cases of malaria in the Philippines and majority of the cases are due to Plasmodium falciparum. P. falciparum life cycle includes gametocytes that will aid the parasite to reproduce sexually in its anopheline vectors. Examine Figure 2 below. Provide three (3) qualitative descriptions of the P. falciparum gametocyte. Write your answers in a complete sentence. Fig. 2. Plasmodium falciparum gametocyte in thin blood smear (CDC, 2022)arrow_forwardQ5. Which of the following is FALSE? If a genetic disease reduces fertility and the allele that causes the disease offers no other advantage, the allele will likely eventually disappear, due to natural selection. Natural selection does not favor individuals who are homozygous for the sickle-cell allele, because these individuals typically die before they are old enough to reproduce. Individuals who are heterozygous HbA/HbS are protected from malaria, and this is why sickle-cell anemia persists in wetter, mosquito-prone regions in Africa. O In regions where malaria does not occur, individuals who are heterozygous HbA/HbS have a selective advantage over those who are homozygous for the normal hemoglobin allele (HbA).arrow_forwardO e. Denial Alternation of generations means... Select one: O a. A. Every other generation is in the medusa form O b. B. Only even generations receive cnydocytes c. C. There are two multicellular adult forms that complete the life cycle x O d. D. Spongin developes every other generation O e. A& C In class we looked at a number of symbiotic relationships Define a symbiotic relation: describe the effects of the relationship on each of the symbionts (1 point each). YOU rolo naiool rolotionchine hetween different species or orarrow_forward
- 17 The graph below represents the number of brown and green beetles collected in a particular ecosystem. Change in Coloration of Beetle Population Green beetles Brown beetles Time (years) The change observed in the number of green and brown beetles in the population is most likely due to (1) natural selection (2) selective breeding (3) gene manipulation (4) a common ancestor [4] Number of Individualsarrow_forwardIn a community in which R elderly people and people with comorbidities are susceptible to a particular SARS virus, the rate of growth of the spread of the virus was jointly proportional to the number of people who had caught the virus and the number of susceptible people who had not caught it. If 10 percent of those susceptible had the virus initially and 25 percent had been infected after 3 weeks, what percent of those susceptible had been infected after 6 weeks?arrow_forward1. Explain how an argument from analogy can be used to direct public policy for the COVID 19 pandemic?arrow_forward
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