You are studying two variations of banana slugs. They have similar coloration and live in the same habitat. Although they are physically able to mate, there are no offspring that survive embryologic development. What can you conclude about the banana slugs? * Pre-zygotic barriers have forced them to be separate species. They are in Hardy-Weinberg equilibrium. O Microevolution is occurring in both variations. O They are two separate species.

You are studying two variations of banana slugs. They have similar coloration and live in the same habitat. Although they are physically able to mate, there are no offspring that survive embryologic development. What can you conclude about the banana slugs? * Pre-zygotic barriers have forced them to be separate species. They are in Hardy-Weinberg equilibrium. O Microevolution is occurring in both variations. O They are two separate species.

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter11: Evidence Of Evolution

Section: Chapter Questions

Problem 1CT

See similar textbooks

Similar questions

Three-spined sticklebacks that have colonized freshwater streams and lakes have repeatedly evolved into similar forms. The pattern can be seen in hundreds of freshwater bodies around the world. Can a single biological species arise more than once (i.e., polyphyletically)? How might this possibility depend on the nature of the reproductive barrier between such a species and its closest relative?
Imagine 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 effect
n which situation would it make sense to use the morphological species concept? When you are able to collect data about how individuals in your study use their habitat, but you are unable to determine if they interbreed When working with fossils from extinct organisms When you only have genetic data about each organism in your study When you are not able to collect data about how individuals in your study use their habitat, but you are able to collect reproductive data
Over the years, you notice that a chipmunk that has been making narrow tunnels under trees in your backyard has acquired a narrower body shape with strong digging arms and legs. Which of the following describes how Lamarck would view this change in the chipmunk's body. Question 17 options: The chipmunk will undergo rapid speciation, followed by long periods of no speciation. The chipmunk will only pass on genetic information to it's offspring, and the environment will shape how they develop. The chipmunk will pass the acquired traits in it's body to it's offspring. If this chipmunk is better adapted to it's environment, it will be more likely to reproduce and pass on it's genes.
Some fish in a murky underground lake have lighter scales than the others. This makes it slightly harder for the lighter fish to escape detection by predators, but most light-colored fish live long enough to reproduce. A natural event separates the dark-scaled fish from their light-scaled cousins, and as a result, a new species of dark-scaled fish emerges. Which statement accurately describes the scenario?
Part A: To which other species of storm-petrel is H. matsudairae, the cold-season breeder on Japan, least closely related? A. H. monteiroi B. H. monorhis C. H. tristrami Part B: What does the phylogeny suggest about a primary reproductive barrier that exists between H. matsudairae and H. monorhis to allow speciation to occur? A. Mechanical B. Gametic barrier C. Temporal D. Nesting on different islands Part C: What does the phylogeny suggest about the likely mechanism of speciation between H. matsudairae and H. monorhis in Japan? A. Allopatric speciation B. Sympatric speciation What's the rationale? What does the phylogeny suggest about the likely mechanism of speciation between H. hornbyi and H. homochroa in the eastern Pacific? A. Allopatric speciation B. Sympatric speciation What's the rationale?
Part A: To which other species of storm-petrel is H. matsudairae, the cold-season breeder on Japan, least closely related? A. H. monteiroi B. H. monorhis C. H. tristrami Part B: What does the phylogeny suggest about a primary reproductive barrier that exists between H. matsudairae and H. monorhis to allow speciation to occur? A. Mechanical B. Gametic barrier C. Temporal D. Nesting on different islands
Sympatric speciation by allotetraploidy has been proposed as acommon mechanism for speciation. Let’s suppose you were interestedin the origin of certain grass species in southern California.Experimentally, how would you go about determining if some ofthe grass species are the result of allotetraploidy?
About 3 million years ago, the Isthmus of Panama (a narrow strip of land connecting North and South America) formed, dividing marine organisms into Pacific and Caribbean populations. Researchers have examined species of snapping shrimp on both sides of the isthmus. Based on the morphological species concept, there appeared to be seven pairs of species, with one species of each pair in the Pacific and the other in the Caribbean. The different species pairs live at somewhat different depths in the ocean. Using mitochondrial DNA sequences, the researchers estimated phylogenies and found that each of these species pairs, separated by the isthmus were indeed each other's closest relatives. The researchers investigated mating in the lab and found that many species pairs were not very interested in courting with each other, and any that did mate almost never produced fertile offspring. Use the species concepts to explain how the sister populations on opposite sides of the isthmus are true…
Several new tetraploid species of a plant called salsify (Tragopogon) have arisen in western North America. These new species each arose from a diploid species that went through the process of allopolyploidy. This mode of speciation is a type of ________ and it occurs ________. A. allopatric speciation; almost instantaneously B. sympatric speciation; gradually C. allopatric speciation; very slowly D. sympatric speciation; quickly
Which of the following are post-zygotic reproductive barriers?a. Different mating songs prevent mate recognitionb. Species A breeds in Spring, Species B breeds in summerc. Species A and B mate, but the embryos die before hatchingd. The gametes of species A aren’t compatible with the gametes of species Be. Species A and B can mate and produce healthy offspring, but the offspring are infertile
Which of the following is an example of postzygotic reproductive isolation?a. Sperm of species A dies in the oviduct of species B before fertilization can take place.b. Hybrid zygotes between species A and B are spontaneously aborted early indevelopment.c. The mating seasons of species A and B do not overlap.d. Males of species A are not attracted to the pheromones produced by the females ofspecies B.