Concept explainers
If an egg rolls out of the nest, a mother greylag goose will retrieve it by nudging it with her beak and head. If researchers remove the egg or substitute a ball during this process, the goose continues to bob her beak and head while she moves back to the nest. Explain how and why this behavior occurs.
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Campbell Biology, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (10th Edition)
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- Explore the research narrative of two evolutionary biologists who investigated the evolution of Galapagos finches over multiple decades here: https://www.biointeractive.org/classroom-resources/interactive-assessment-beak-finch Answer the assessment questions at the end of the videoarrow_forwardMany lines of evidence, including biochemical evidence, show that living birds are direct descendants of dinosaurs. A number of dinosaur lineages had feathered dinosaurs, not just the lineage that includes living birds. Do you think that is it justified to believe that all feathered dinosaurs had behaviors known from living birds? Such behaviors of birds include colonial nesting, sexual displays by males using feathers, males moving to display their ornamental feathers to female mates. Give a brief reason for your answer.arrow_forwardBased on the text for roaches: Predict what factors in the environment can be altered to to stop the pest from reproducing. PLEASE USE INFO ON THE TEXT ONLYarrow_forward
- look for this information about rabbits: i. Scientific name 1. Common names ii. Birthplace iii. research uses iv. Behavior v. Habitat Vi. anatomy and physiology * Please add some references where you get the information fromarrow_forwardWhich statement below is FALSE regarding the differences between sea urchin and mammals? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a External fertilization is observed in sea urchins, whereas internal fertilization is used in mammals. External fertilization is observed in mammals, whereas internal fertilization is used in sea urchins. Urchins produce thousands of eggs, whereas humans produce only one egg that when fertilized becomes a zygote. Once sea urchins release their gametes, they move on to feeding on other normal activities and do not worry about their progeny at all. Unanswered A Submitarrow_forwardlink https://askabiologist.asu.edu/peppered-moths-game/how-to-play.htmlarrow_forward
- What are the characteristics of a female mud crab ( Scylla serrate) on its mouth (Buccal) Frame? Based on the text.arrow_forwardJean-Baptiste de Lamarck thought that giraffes made their necks long due to use and disuse and inheritance of acquired characteristics. True Falsearrow_forwardAfter recovering from his TTX poisoning, Dr. Marshall Westwood decided to take a vacation. An avid birder, he decided to go to Papua New Guinea with Bill Whitlatch, an ornithologist friend of his from Montana Technical Institute. Three days into their trip, Bill netted a bird with an orange body and black wings and head for closer study. Dr. Westwood was very curious and asked Bill if he could have a closer look at the bird. After handling the bird and later touching his mouth with his hand, Dr. Westwood noticed that his fingers and lips were going numb. His mind immediately flashed back to the disastrous trip to Indonesia and he began to panic. Luckily, the symptoms faded before they progressed into anything more serious. His friend Bill used a key to identify the animal as a ‘pitohui.’ The pitohui are small, social songbirds that live in Papua New Guinea. They are generally about 23 centimeters long with strong legs and a powerful beak. Their encounter was the first time anyone had…arrow_forward
- A group of researchers are interested in whether temperature has an affect on time to metamorphosis in a species of frog. Eggs from a single pond were obtained and raised at either 15°C or 25°C until metamorphosis completed. Time (days) 15°C 25°C 360 379 375 353 354 299 378 349 385 323 359 298 371 301 355 375 μ 367.1 334.6 S 11.66 33.85 Time to metamorphosis at 25°C quantile Time to metamorphosis at 15°C quantile 385 380 375 370 365 360 355 +3 -1.5 380 360 340 320 300 -1.0 -0.5 00 05 10 1.5 Normal quantile -1.5 -1.0 -0.5 00 0.5 1.0 Normal quantile a) List the potential statistical tests that could be used to test the researcher's hypothesis, how they compare in terms of power, and the assumptions made by those tests. (3 marks) b) Based on the data, which test should be used? Provide a brief explanation and test any assumptions, as necessary to come to your conclusion. (4 marks) c) Conduct a statistical analysis using that test. (8 marks)arrow_forwardEastern tent caterpillars (Malacosoma americanum) live in large groups in silk nests, resembling tents, which they build in trees. They are among the first insects to be active in early spring, when daily temperature fluctuates from freezing to very hot. Over the course of a day, they display striking differences in behavior: Early in the morning, they rest in a tightly packed group on the tent's east-facing surface. In mid afternoon, they are on its under-surface, each caterpillar hanging by a few of its legs. Propose a hypothesis to explain this behavior. How could you test it?arrow_forwardDescribe at least two different key primate traits that can be discerned in the video: "Like Humans, Chimps Learn Behavior From One Another - Smithsonian Channel". Use complete sentences. Minimum of 2 sentences.arrow_forward
- Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning