The Nopoli rock-climbing goby uses mouthparts modified into a sucker to climb up waterfalls as tall as 330 feet. It also uses this sucker to scrape food off surfaces. Which of the following statements would be TRUE if we were to call the sucker an adaptation for climbing? The sucker evolved originally under selection for its feeding function and was later coopted for climbing. The sucker evolved originally under selection for its climbing function and was later coopted for feeding. The sucker evolved originally due to drift and was later coopted for feeding.

The Nopoli rock-climbing goby uses mouthparts modified into a sucker to climb up waterfalls as tall as 330 feet. It also uses this sucker to scrape food off surfaces. Which of the following statements would be TRUE if we were to call the sucker an adaptation for climbing? The sucker evolved originally under selection for its feeding function and was later coopted for climbing. The sucker evolved originally under selection for its climbing function and was later coopted for feeding. The sucker evolved originally due to drift and was later coopted for feeding.

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

According to Hamilton’s rule,(A) natural selection does not favor altruistic behavior thatcauses the death of the altruist.(B) natural selection favors altruistic acts when the resultingbenefit to the recipient, corrected for relatedness, exceedsthe cost to the altruist.(C) natural selection is more likely to favor altruistic behaviorthat benefits an offspring than altruistic behavior thatbenefits a sibling.(D) the effects of kin selection are larger than the effects ofdirect natural selection on individuals.
Explain alarm calling in prairie dogs and ground squirrels. what are some data that indicatewhether alarm calling is selfish or altruistic behavior.? why altruistic behavior represents and evolutionary paradox. What is the primary hypothesis for themechanism that led to the evolution of alarm calling?
Which of the following statement(s) about adaptations is true? “Adaptation” is another word for “acclimatization.” or They are traits that confer increased fitness in a given environment.
Many species of animals make alarm calls, which warn others in their group that a predator is approaching. Alarm calls also attract the atten- tion of the predator, making it more likely that the individual making the call will be eaten. Why might natural selection favor the evolution of alarm calls in a species? How might you test that hypothesis?
During drought years on the Galapagos islands, small, easily eaten seeds become rare, leaving mostly large, hard-cased seeds that only birds with large beaks can eat. If a drought persists for several years, what should one expect to result from natural selection? small birds gaining larger beaks by exercising their mouth parts small birds anticipating the long drought and eating more to gain weight and, consequently, growing larger beaks More small beaked birds dying than larger beaked birds. The offspring produced in subsequent generations have a higher percentage of birds with large beaks. larger birds eating less so smaller birds can survive small birds mutating their beak genes with the result that later generation offspring have larger beaks
Acorn woodpeckers (Melanerpes formicivorus) stash acornsin storage holes they drill in trees. When these woodpeckersbreed, the offspring from previous years often help withparental duties. Activities of these nonbreeding helpers includeincubating eggs and defending stashed acorns. Propose somequestions about the proximate and ultimate causation of thesebehaviors that a behavioral biologist could ask.
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.
Many species of animals make alarm calls, whichwarn others in their group that a predator isapproaching. Alarm calls also attract the attention of the predator, making it more likely thatthe individual making the call will be eaten. Whymight natural selection favor the evolution ofalarm calls in a species? How might you test thathypothesis?
Bergman's and Allen's rules apply to many animals, not just humans. Look at the following images of two different hare species. Based on what you can see in the images and using only Bergmann's Rule and Allen's Rule, which of these hares is adapted for a cold climate and which is adapted for a hot climate? What adaptations do they have to suit their environments? Do humans living in similar environments share the same adaptations? Remember, you must use Bergman's and Allen's rules in your analysis, so be sure you know these rules and refer to them.
Ancestors of the beach mouse mayhave exhibited variations in their coat color. Because of the prevalence of visualpredators, the better-camouflaged (lighter) mice in the beach habitat may havesurvived longer and been able to produce more offspring. Over time, a higher andhigher proportion of individuals in the population would have had the adaptation of lighter fur that acted to camouflage the mouse in the beach habitat.
Why does central place foraging cause animals that travel farther to bring back larger amounts of food?
Almost all birds starved during the dry season depicted here. What type of selection would have been present if only the intermediate-beaked birds had survived (instead of the small- and large-beaked birds)?