The Pipidae are a family of tongueless frogs that have one or more claws on their toes. While observing these frogs, you notice that males with more claws had more opportunities to mate and father more offspring. You hypothesize that these frogs evolved to have more claws as an adaptive trait to improve reproductive success. To test this hypothesis, you must: 1.look for evidence of multiple claws in ancestors of Pipidae 2.determine if the number of claws is heritable 3.test whether other these males have any other adaptive traits 4.test whether males with no claws are able to mate

The Pipidae are a family of tongueless frogs that have one or more claws on their toes. While observing these frogs, you notice that males with more claws had more opportunities to mate and father more offspring. You hypothesize that these frogs evolved to have more claws as an adaptive trait to improve reproductive success. To test this hypothesis, you must: 1.look for evidence of multiple claws in ancestors of Pipidae 2.determine if the number of claws is heritable 3.test whether other these males have any other adaptive traits 4.test whether males with no claws are able to mate

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter39: Animal Behavior

Section: Chapter Questions

Problem 1CT

See similar textbooks

Similar questions

One way to prevent a small population of a plant or animal species from going extinct is to deliberately introduce some individuals from a large population of the same species into the smaller population. In terms of the evolutionary mechanisms discussed in this chapter, what are the potential beneﬁts and drawbacks of transferring individuals from one population to another? Do you think biologists and concerned citizens should take such actions?
Members of some species will sound warning calls when they notice predators even though this increases the likelihood the predator will find the individual that provided the alarm. The evolution of such behaviors provides evidence for which hypothesis? A. Evolution selects behaviors that increase the ability of individuals in a species to camouflage. B. Evolution selects behaviors that increase the likelihood that individuals in a species will reproduce. C. Evolution selects behaviors that increase the the likelihood that individuals in a species that share similar genes will survive and reproduce. D. Evolution selects behaviors that increase the likelihood that individuals in a species that share similar genes will migrate.
How might an evolutionary biologist explain why a species of salamander becomes blind after colonizing a cave? Group of answer choices Members of the ancestral population that colonized the cave differed in their ability to see. If maintaining the ability to see in the cave was a waste of energy, blind salamanders might actually have more offspring than those who could see. It is possible that in the cave there is a source of pollution that increases the mutation rate for a gene that makes salamanders blind. Over time, due to exposure to this chemical, the membersof the population lose their sight. There is no way to explain this in terms of natural selection. The members of this salamander species no longer needed to use their eyes. Over time, due to lack of use, they lost the ability to see.
Evolutionary biologists often say that evolution “selects for outcomes” not for the particular genetic changes that lead to that adaptive outcome. Given that perspective, is it surprising that different gene mutations might be involved in the evolution of the same trait (such as light skin or adaptation to living in high mountains)? Why or why not?
If natural selection has no foresight,how can it explain features that seem to prepare organisms for future events? For example, deciduous trees at high latitudes drop their leaves before winter arrives, male birds establish territories before females arrive in the spring, and animals such as squirrels and jays store food as winter approaches.
A)Research shows that Neandertals coexisted with at least three other species, including Homo sapiens. There are some humans today that have Neandertal and Denisovan genes. Generate a hypothesis about how their genes are also a part of our genes. B) Using this information: In 1993, primatologist Richard Wrangham proposed that "Bonobo hypersexuality appears closely linked to the evolution of female-female alliances. I suggest that these alliances were made possible by relaxed feeding competition."Generate a hypothesis about why Bonobos behave this way..
Assume that you are studying the evolution of anti-predator behavior in two species of butterfly. Both species A and species B have black and orange warning coloration on their wings that is used as a warning to predators. Which of the following studies would determine whether the warning coloration in species A and species B is a homology? An evolutionary study that determines which species produces the warning coloration at a younger age. An evolutionary study that determines if the same evolutionary forces maintain the black and orange coloration in both species. An evolutionary study that determines which predators are affected by the warning coloration. An evolutionary study that reconstructs color on the larger butterfly phylogeny to determine if the common ancestor of species A and species B also had black and orange warning coloration.
It has taken millions of years for the ancestors of whales to change into what we know today, as indicated in the diagram below. Based on your knowledge of evolution, which of the following is a reasonable explanation of why the organisms in the diagram changed over 25 million years? Question options: As the environment changed the food sources became more difficult to obtain so characteristics that allowed the organisms to hunt in an aquatic environment became more advantageous. As the environment changed the temperature became too hot and the organisms began to move to a more aquatic environment to keep cool. As the environment changed the food sources became more difficult to obtain so the organisms decided to change their characteristics to ones that would be beneficial when hunting in an aquatic environment. As the environment changed the predators on land became better adapted to hunting the whales ancestors forcing them to live in more aquatic…
How were researchers able to determine that Soapberry bug mouthparts had evolved to be shorter in some populations? By growing a population in a laboratory and forcing them to eat smaller walled fruits for several generations By analyzing the gene variants for mouth parts in different populations By experimentally introducing new fruits into the the ecosystems that the populations they suspected were evolving live in By comparing the mouthparts of modern populations to museum specimens collected in the past
Of the following, which one is an example of an evolutionary explanation (as opposed to a functional explanation)?A. People evolved a fear of snakes because many snakes are dangerous.B. Humans have a (tiny) tailbone because our ancient monkey-like ancestors had a tail.C. People evolved an ability to recognize faces because that ability is essential for cooperative social behaviors.D. People evolved a tendency to form long-term male–female bonds because human infants benefit from the help of two parents during their long period of dependence.
A number of behaviors that exhibit cultural evolution, such as tool-using, also have genes that favor such learning. Could different populations of chimpanzees have different genetic predispositions to show cultural evolution?
Darwin’s finches have different beaks in terms of size and shape to be able to eat different food sources like insects, nectar, and seeds. Cactus finches have longer, more pointed beaks to probe cactus flowers compared to their relatives, the ground finches. If a plant disease killed a large portion of the cacti on the Galapagos islands, what would the future populations of finches look like in terms of beak size and shape? Use your knowledge of natural selection to determine which option is most likely. Ground finches would survive and pass on their shorter and wider beaks, so there would be a higher proportion of finches in future generations that have short and wide beaks. Ground finches would survive and pass on their beaks, but they would mate with the remaining cactus finches, creating a new hybrid that is somewhere between short versus long and narrow versus wide. Cactus finches would compete for food with ground finches and exhibit resource partitioning, so the beaks…