
Concept explainers
Anole lizards can be found on many islands in the Caribbean that share similar environmental habitats. Anoles on the different islands share similar ecological morphotypes because of their similar habitats. Anoles on each island have evolved from a common ancestor into a variety of different species that occupy different ecological niches as shown below.
Which of the following statements explains how the morphotypes found on one island, and shown in the figure, occurred as a result of
A - Convergent evolution occurred, causing new species to evolve based on diverse new habitats.
B -
C - Natural selection occurred, so individual anoles with certain phenotypes can survive and reproduce only in a specific ecological niche.
D - Reproductive isolation occurred as a result of habitat isolation since the anoles are unable to move into different ecological niches to breed.


Trending nowThis is a popular solution!
Step by stepSolved in 4 steps

- On this cladogram of the reptiles (which includes birds), all taxa have parental care except for the lizard (indicated as "no PC"). Apply the principle of parsimony to this situation and identify the cladogram that provides the most likely explanation for the evolution of parental care in the lizards. Note on the cladogram a black bar represents a GAIN of parental care (PC), a white bar represents the LOSS of parental care (PC). 0 The maple leaf The stars The flower The volcano no PC no PC no PC no PCarrow_forwardThe table below shows four different species: alligators, chimpanzees, tuna, and finches. The table indicates if each species contains a specific trait, such as mammary glands, amni- otic egg, vertebrae, gizzard, feathers, or four limbs. Traits (+/- indicates presence/absence) Chimpanzee Species A Alligator B с Tuna Finch A table that shows derived traits in various species. gizzard amniotic egg Mammary Amniotic Glands Egg feathers + D vertebrae + + + Vertebrae + + + + Gizzard + + Based on the information in the table above, which trait provides the strongest evidence that the various species in the table were derived from a common ancestor? Feathers + Four Limbs + + +arrow_forwardSuppose you have four species of lizard and you are interested in how leg length will change in a single generation of evolution under directional selection. Given the following parameters, which lizard do you predict will change the most in one generation? Species A: Heritability: 0.5, selection differential: 1.2 Species B: Heritability: 0.4, selection differential: -1.9 Species C: Heritability: 0.9, selection differential: -0.67 Species D: Heritability: 0.1, selection differential 3.2 Species A Species B Species C Species Darrow_forward
- Please match each terms, I have attached in the imagesarrow_forwardConsider a population of sticklebacks in a large lake undergoing pollution remediation. The remediation is effective in improving water quality and clarity. This could potentially cause the number of bony plates on sticklebacks to evolve. Which of the following answers best identifies the conditions under which NO natural selection would occur? All of the sticklebacks have 14 bony plates The number of bony plates present on a stickleback is not a heritable trait There is no selective advantage to having any particular number of bony plates If at least one of the conditions identified in the previous three answers is present, there will be no natural selection Only if all three of the conditions identified in the first three answers are present, there will be no natural selectionarrow_forwardCrickets have colonized each island in the Hawaiian Archipelago. Geological data indicates that Kauai is the oldest island in the chain and Hawaii is the youngest. Researchers hypothesized that crickets sequentially colonized islands as they rose out of the ocean and created a cladogram based on molecular relationships to test this idea. 3) Which islands unambiguously show multiple independent colonization events? 4) How many colonization events were there on each of the islands showing multiple events?arrow_forward
- Use each of the following species concepts to write a claim about whether the dark and light fur mice are, in fact, different species. Your claim should demonstrate your understanding of that particular species concept. Mice with light coat colors are found in populations scattered across the southeastern US. Researchers believe the light coat color emerged in a single population. How would a biologist explain the evolution of the light coat color in populations across the southeastern US? Briefly explain your reasoning.arrow_forwardIn which of the situations below would speciation be most likely to occur? You can choose more than one answer. a. Seven lemurs escape from an enclosure at Duke University. To everyone's surprise, they establish a small but viable population coexisting successfully with humans in a partly suburban environment very different from their native Madagascan habitat. b. Bighorn sheep occupy mountains from Canada to Death Valley in Southern California, interbreeding all along the way. The populations at the two ends of the range live in very different environments. c. A few individuals of a butterfly species were blown to an island during a severe storm. d. A population of juniper shrubs is split by the formation of a canyon. Every year, strong winds carry a small amount of the shrubs' pollen across the canyon.arrow_forwardImagine that you are an evolutionary biologist currenyly studying a particular species of snake on an island off the coast of Durban, South Africa and that you have information indicating that1000 years ago, the same species of snakes in that island was observed to exist in a variety of colours (Red blue,yellow green) and that most of the snakes were blue. This same species of snakes and the same mixof colours were also found on the mainland (i.e Kwazulu Natal) Assuming that all the snakes are descended from an ancestral blue snake, explain this change in colour frequency (evolution) as though it were based solely on each of the following processes. a. Natural selection b. Bottleneck effect c. Founder effectarrow_forward
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education





