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- Some species of animals gain physiological advantages byexploiting the specialized physiological capabilities of otherspecies. Explain how marine mammals that prey on teleost fishrather than invertebrates illustrate this principle. Also explainhow carnivorous mammals that prey on herbivorous mammalsin deserts illustrate the same principle.For animals adapted to it, swimming is energetically the cheapest typeof locomotion because ofa. streamlined body forms in aquatic organisms.b. slow speed of movement of some swimmers.c. buoyancy of water.d. a and c only.e. a, b, and c.Considering animals with a body mass of about 100 g, rank thethree forms of locomotion from highest energy cost to lowestenergy cost. Were these the results you expected, based on yourown experience? What could explain the energy cost of runningcompared to that of flying or swimming?
- Which of the following are biological adaptations that have evolved out of the limitation for organisms to maintain a high surface area to volume ratio in different tissues? A. The need for single-celled organisms to remain small. B. The need for organ systems to be branched, have infoldings, and multiple cells. C. The need for large multicellular organisms to have cells that operate at lower metabolic rates. D. All of the above E. A and B onlyFind an occurence where a biomechanical therory or concept was being used in a tv show/advertisement (i.e discovery channel). a) Attach link or article of the information. b) how was the biomechanical theory/concept used? c) how does this relate to biomechanics and what was learned from the show/article/advertisement.Which type, or form, of animal could function without a circulatory system? A. a small, thin sedentary aquatic animal B. an active terrestrial animal C. a large, mobile aquatic animal D. a large, slow terrestrial animal E. a large, mobile terrestrial animal
- Compare and contrast the physical and chemical conditionson Earth at the time life first arose with conditions today.From a physiological standpoint, discuss at least two reasonswhy animals could not have existed on early Earth. In whatways has microbial metabolism altered Earth’s biosphere?How might life on Earth be different if oxygenicphotosynthesis had not evolved?The researchers found that the Neanderthal fossil had approximately0.0078 as much 14C as found originally in the atmosphere. (a) Usingthe numbers on your graph, determine how many half-lives havepassed since the Neanderthal died. (b) Using your 14C calibration onthe x-axis, what is the approximate age of the Neanderthal fossil inyears (round off to the nearest thousand)? (c) Approximately whendid Neanderthals become extinct according to this study? (d) Theresearchers cite evidence that modern humans (H. sapiens) becameestablished in the same region as the last Neanderthals approximately 39,000–42,000 years ago. What does this suggest aboutthe overlap of Neanderthals and modern humans?apt is an important living organism beacause
- In 1798, a stuffed platypus specimen was delivered to the British Museum. Reports that it laid eggs created much confusion. To modem biologists, a platypus is clearly a mammal. It has fur and the females produce milk. Young animals have typical mammalian teeth that are replaced by hardened pads of the bill as the animal matures. Why do you think modem biologists can more easily accept that a mammal can have some reptilelike traits than scientists who were considering this animal in the late 1700s?Scientists believe that animals have a common ancestor because a. all animal appendages have been modified into limbs. b. all animal genes are very similar. c. all animals are autotrophs. d. all animals share unique features of the junctions between cells.1. how has human evolution changed or not chnged yourconcept of what it means to be human? (restrict answerto physical apspects of hunans and sub-humans sych asanataony, physiology,fossil evidnece, nutrition) readquest 2 before writing answer2. how has human evolution changed your concept ofwhat it means to be human? (restrict your answer toapsect of human, that they are mental such asintelligance, religon and language, self awarness andrevenge.)
