Which of the following are good examples of macroevolution? 2. Orange beetles preferring to mate with brown beetles None of the above 4. Deforestation leading to dwindling numbers of orangutans in the wild All of the above 1. A new island being colonized by a few individuals of a common mainland bird species 3. Tapeworms with longer hooks are better able to attach to their host's gut

Which of the following are good examples of macroevolution? 2. Orange beetles preferring to mate with brown beetles None of the above 4. Deforestation leading to dwindling numbers of orangutans in the wild All of the above 1. A new island being colonized by a few individuals of a common mainland bird species 3. Tapeworms with longer hooks are better able to attach to their host's gut

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter45: Population And Community Ecology

Section: Chapter Questions

Problem 2VCQ: Figure 45.10b If the major food source of the seals declines due to pollution or overfishing, which...

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ch * W S Adapoids and Omomyoids divided food type resources as a way to avoid competion, driving species development further away from each other. This is seen as what? 01. Early use of tools to hunt and eat meat 2. A precursor to bipedalism 3. An example of a selective pressure that may have favored the strepsirhine and haplorhine split 04. A response to the geologic transition to open Savannahs Click Save and Submit to save and submit. Click Save All Answers to save all answers. ? E hp ts * 3 # X E D $ O IOI 4 R C % 5 F 40 ^ T 6 17 4- & 7 Y G H V B fa + * 8 U J N O 1 O K M Save All 69°F Sunny <
Reintroduction of species into their native ecosystem is a controversial topic. Provide at least 3 reasons in favor of this and 3 against the reintroduction of native species.
1. According to the theory of island biogeography, which island will have the highest immigration rate? 2. Why? (one sentence) 3. Which island will have the highest extinction rate? 4. Why? 5. If the birds disperse between the islands, then this archipelago would be considered a ____
Species that are r-selected are often____. a. opportunists b. slow to colonize new areas c. present in very low densities, but never at high densities d. organisms with very low reproductive rates e. capable of acting as K-selected species in the right conditions
2.) Suppose that the carrying capacity of a second island is about 500, and the growth rate of a typical Common Gallinule population is around 0.18 when the population size is very small. The time that it takes to reach one-half of K is about 12 years. What will the population size be 15, 20, and 25 years after initial introduction of a few individuals to this island?
1. The survivorship curve above is characteristic of what type of species? Choice 1 of 3:Type I Choice 2 of 3:Type II Choice 3 of 3:Type III 2. Is this type of species likely an r-selected or K-selected species? Choice 1 of 2:r-selected Choice 2 of 2:K-selected 3. Describe the life history traits of this type of species A. reproductive strategy B. parental investment C. Expected lifespan 4. Name an animal that fits this life history strategy.
Species adapt better and faster if they Try harder O Wish for more adaptations O Plan more thoroughly O None of the above
Figure 45.10b If the major food source of the seals declines due to pollution or overfishing, which of the following would likely occur? The carrying capacity of seals would decrease, as would the seal population. The carrying capacity of seals would decrease, but the seal population would remain the same. The number of seal deaths would increase but the number of births would also increase, so the population size would remain the same. The carrying capacity of seals would remain the same, but the population of seals would decrease.
Figure 19.6 If the major food source of seals declines due to pollution or overfishing, which of the following would likely occur? a. The carrying capacity of seals would decrease, as would the seal population. b. The carrying capacity of seals would decrease, but the seal population would remain the same. c. The number of seal deaths would increase, but the number of births would also increase, so the population size would remain the same. d. The carrying capacity of seals would remain the same, but the population of seals would decrease.
All but one species of large birds native to New Zealands tropical forests are now extinct. Numbers of the one surviving species, the kereru (Hemiphaga, novae seelandine), are declining rapidly due to habitat loss, poaching, predation, and interspecies competition that wiped out the other native birds. The keruru is the only remaining dispersal agent for several native tress that produce big seeds and fruits, mainly because it is the only remaining species that can swallow big fruits (left) and expel big seeds whole. One of these trees, the puriri (Vitex lucens), is New Zealands most valued hardwood. Explain, in terms of natural selection, what would happen to puriri trees in New Zealand if the kereru becomes extinct.
The number of species on an island depends on the size of the island and its distance from a mainland. This statement would most likely be made by _____. a. an explorer b. a biogeographer c. a geologist d. a philosopher
TejaTscharntke’s studies of the food web associated with Phragmites reeds revealedthat:a.only a single parasitoid species can persist exploiting a single speciesof herbivore.b.only a single herbivore species can persist attacking a single speciesof plant.c.predation by birds actually protects herbivores, because the birds feedon parasitoid-infested herbivore galls but not uninfested galls.d.within local food webs, all interactions tend to be of roughly the samestrength.e.recognizing variation in interaction strength can greatly simplify thedepiction of a food web.