Concept explainers
Although many chimpanzees live in environments with oil palm nuts, members of only a few populations use stones to crack open the nuts. The likely explanation is that
(A) the behavioral difference is caused by genetic differences between populations.
(B) members of different populations have different nutritional requirements.
(C) the cultural tradition of using stones to crack nuts has arisen in only some populations.
(D) members of different populations differ in learning ability.
Learn your wayIncludes step-by-step video
Chapter 51 Solutions
Campbell Biology: Australian And New Zealand Edition + Mastering Biology With Etext
Additional Science Textbook Solutions
Chemistry: A Molecular Approach (4th Edition)
Brock Biology of Microorganisms (15th Edition)
Human Physiology: An Integrated Approach (8th Edition)
Chemistry: The Central Science (14th Edition)
Microbiology: An Introduction
College Physics: A Strategic Approach (3rd Edition)
- Which is NOT a primate trait: A) Convergent eyes B) Nails instead of claws C) Post orbital bar D) Small brain compared to other mammalsarrow_forwardWhich is the best possible hypothesis for explaining changes in cortical robusticity over time? a.) The decrease in cortical robusticity associated with the appearance of modern humans was rapid and dramatic and resulted in more lightly constructed skeletons. b.) The increase in cortical robusticity associated with the appearance of modern humans was gradual and resulted in larger brain size coupled with a greater ability to deal with predators l. c.) The decrease in cortical robusticity associated with the appearance of archaic Homo sapiens is a part of a long term trend beginning with australopithecines and ending with modern Homo sapiens. d.) None if these statements are an appropriate hypothesis for changes seen in cortical robusticity.arrow_forwardWhat adaptive benefit do the three middle ear bones afford mammals? A) These bones helped to improve chewing, allow ancient mammals to diversify their diet. B) These bones improve hearing by allowing vibrations to be better picked up in air and the detection of higher frequencies. C) These bones allowed the detection of vibrations (hearing) for the first time in evolutionary history. D) These bones improve vision by providing an additional anchor point for the optic nerve.arrow_forward
- Eutheria PLACENTALS THERIANS MONOTREMES Metatheria MARSUPIALS E iv 89 64 81 54 Human Chimpanzee Gorilla Orangutan Macaque Marmoset Tarsier Galago Mouse Lemur Wallaby Dolphin Tree Shrew Squirrel Horse Dog Pig Alpaca Cat Cow Sloth Opposum Rabbit Fruit bat Echolocatin Hyrax Elephant Armadillo Platypusarrow_forwardDefine natural selection using the 5 points below to explain its role in understanding primate behavior. (1) there is variation among individuals; (2) some of that variation is heritable; (3) there is always competition between individuals for resources; (4) some variants outcompete other variants and leave more offspring; (5) to the extent that the parent's traits are heritable, then a larger portion of the next generation will reflect those traits.arrow_forwardSuggest 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_forward
- explain how humans are related to each of the following animals by indicating the level of relatedness and which traits are evidence for this level of relatedness a) lamprey b) sea star c) beetlearrow_forwardAccording to Louis Leakey behaviors that are common to modern humans and modern chimpanzees would be present in our common ancestor. Give 3 key behaviors behaviors that are likely to be present in early humans?arrow_forwardYou are wandering in the Amazon rainforest, when you hear the loud call of an animal. You walk in the direction of the sound, and discover that it is coming from an adorable species of frog. a) What type of adaptation is being displayed by this species of frog? b) Describe how selection could work FOR and AGAINST this adaptation.arrow_forward
- Tarsiers have been reclassified into which suborder of primates: A) strepirrhini B) Lemurs C) Haplorrhini D) Anthropoidsarrow_forwardAn adult human has a flat face with a small jaw and large cranium. An adult chimpanzee has a large jaw and small cranium. Both juvenile chimps and humans have heads similar to adult humans. Which of the following is a reasonable explanation for this pattern? Group of answer choices A) genes that modify skull shape are not expressed in chimps during development B) head shape is controlled by cytoplasmic determinants C)genes that modify skull shape are not expressed in humans during development D) chimps and humans have completely different genes controlling the formation of the headarrow_forwardEvidence suggest that feathers originally evolved for some function other than facilitating flight. This implies that (choose the best answer): a) Feathers are not currently an adaptation for flight. b) There was negative frequency dependent selection for feathers. c) Adaptations can evolve via the modification of pre-existing structures for a new function. d) Feathers arose via acclimatization. e) Natural selection anticipates future need and directs evolution accordingly.arrow_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