Concept explainers
Introduction: Song learning is a gradual process in some bird species. It takes place in stages. The newly hatched bird memorizes the song during sensitive period by listening to their parents. On becoming juvenile, they sing a subsong, a tentative note. They listen to this subsong and compare it with the song memorized in the sensitive period. After the two matches, the song is crystallized (finalized) for the entire life.
In Canary (a seed eating songbird), there are multiples sensitive periods for song learning. They incorporate new song also known as “syllables” in their song repertoire every year. In addition to this, their song also becomes flexible between breeding seasons.
Want to see the full answer?
Check out a sample textbook solutionChapter 51 Solutions
Campbell Biology, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (10th Edition)
- Suggest a probable selective advantage of each of the following traits. a)clear wings of many flying insects b)long tongue of a chameleon c)tendrils of climbing plants d)eel's body shapearrow_forwardBirds that do not receive adequate nutrition during development sing less often and for shorter periods of time as adult birds. Which BEST describes the outcome of nutritional stress in these songbirds? a They are less likely to obtain good nesting sites. b They are less likely to find adequate food supplies. c They are less likely to attract mates and pass on their genes. d They are less likely to ward off predators.arrow_forwardWhich of the following statements about gene imprinting is correct?(a) Gene imprinting is a male reproductive strategy that can reduce the lifetime reproductivesuccess of females.(b) Gene imprinting is a female reproductive strategy that can reduce the lifetimereproductive success of males.(c) Gene imprinting is found only in placental mammals.(d) All statements are correct. A. (a) and (c) B. (a) and (b) C. (b) and (c) D. (d)arrow_forward
- Which of the following structures is unique to mammals? Question 6 options: A) Primitive meninx B) Dura mater C) Pia mater D) Secondary meninxarrow_forwardA male and female gibbon that are similar in size likely demonstrate the lack of sexual dimorphism… A : due to the polygamous social structure in gibbons. B : as the result of unequal access to resources within their environment. C : which is not related to social structure in gibbons. D : due to adaptations related to Allen’s rule. E : due to decreased competition for mates in a monogamous social structure.arrow_forwardYou are a researcher studying birds in an Indonesian rainforest. You have just discovered two new species whose beaks are markedly different, which you have named Laetiphonia orthorhynchus and Laetiphonia rhamphis. In particular, the beaks of L. orthorhynchus are very long, straight and pointed, whereas L. rhamphis have beaks that are quite short, wide and curved downwards. In further studies, you find that the same gene codes for beak shape in both species. In your own words, explain at least two ways that changes in gene expression could result in the differences you observe between these two species. Make sure to be specific in how your explanation applies to the bird species in this example.arrow_forward
- How are bright tail feathers(or loud sounds, or the ability to fight off other suitors) a good indication of general fitness and health of a male sutor? How does this influence the next generation?arrow_forwardFemale spotted sandpipers aggressively court males and, aftermating, leave the clutch of young for the male to incubate. Thissequence may be repeated several times with different males untilno available males remain, forcing the female to incubate her lastclutch. Which of the following terms best describes this behavior?(A) polygyny(B) polyandry(C) promiscuity(D) certainty of paternityarrow_forwardWhich of the following is common to the development of bothbirds and mammals?(A) holoblastic cleavage(B) epiblast and hypoblast(C) trophoblast(D) gray crescentarrow_forward
- The macaw has a large beak that allows it to break through large nuts to get to the sweet fruit and pulp inside. Which of the following would a baby macaw most likely experience? A) Inherit a large beak from its parents B) Eat different things than its parents C) Live in a different habitat than its parents D) Learn to crack the nut without using its beakarrow_forwardIdentify the type of behavior. 1) 2) Goose. Bees attracted to the smell of the flower and flying towards the scent. _: Once initiated, it will run to completion and this could be observed in nesting behavior of Graylag 3)_ : A genetically program form of learning during developmental stage. Example: sparrow babies learn how to sing exactly at the same frequency as the mother. But if the babies grow isolated from their mother, the singing frequency will be different. 4) A turtle draws its head back into its shell when its shell is touched. After being touched repeatedly, the turtle realizes it is not in danger and no longer hides. This is an example of 5) : A child might stop throwing tantrums after his/her favorite toy is taken away after each tantrums.arrow_forwardWhich of the following is/are exaptations? a) Group of answer choices b) Feathers of birds c) Production of many small offspring in high predation sites. d) mammalian inner ear ossicles (bones) e) Development of a waxy cuticle in dry environments.arrow_forward
- Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning