Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 47.3, Problem 1CC
Can the relationship between body size and
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Chapter 47 Solutions
Biology
Ch. 47.2 - Prob. 1CSCh. 47.2 - Prob. 2CSCh. 47.3 - Can the relationship between body size and...Ch. 47.3 - What observation led to the experiments conducted...Ch. 47.3 - CoreSKILL How did the experimental linking of the...Ch. 47.3 - Prob. 3EQCh. 47.4 - Prob. 1CCCh. 47 - Prob. 1TYCh. 47 - Gluconeogenesis a. occurs when the liver...Ch. 47 - Prob. 3TY
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- Tiktaalik is a fish that lived 375 million years ago that grew to three metres long and had aquatic features mixed with others more suited to life on land. The fossils of five Tiktaalik specimens reveal that the animals had a large, robust pelvic girdle, a prominent hip joint, and long hind fins. The powerful fins could have propelled the beast in the water, but also helped it walk on riverbeds, or scramble around on mudflats. It is believed that Tiktaalik evolved into four- legged land animals. The scientists have yet to find a Tiktaalik hind fin bone, or any remains that might shed light on the origins of toes. A picture of Tiktaalik is available at https://www.npr.org/2010/07/05/127937070/t human-edge-finding-our-inner-fish Describe how Darwin would explain that evolution of hind legs (of land animals) actually began as enhanced hind fins (of Tiktaalik), referring to his relevant observations and inferences (Lecture 02 History of Evolutionary Thought - slide 18). Indicate where the…arrow_forwardCan you suggest why, during the evolutionary history of animals, there has been a tendency for maximum body size to increase?arrow_forwarda- Tiktaalik is a fish that lived 375 million years ago that grew to three metres long and had aquatic features mixed with others more suited to life on land. The fossils of five Tiktaalik specimens reveal that the animals had a large, robust pelvic girdle, a prominent hip joint, and long hind fins. The powerful fins could have propelled the beast in the water, but also helped it walk on riverbeds, or scramble around on mudflats. It is believed that Tiktaalik evolved into four-legged land animals. The scientists have yet to find a Tiktaalik hind fin bone, or any remains that might shed light on the origins of toes. A picture of Tiktaalik is available at https://www.npr.org/2010/07/05/127937070/the-human-edge-finding-our-inner-fish Describe how Darwin would explain that evolution of hind legs (of land animals) actually began as enhanced hind fins (of Tiktaalik), referring to his relevant observations and inferences (History of Evolutionary Thought). Indicate where the observations and…arrow_forward
- Give typing answer with explanation and conclusion Question 2: Describe the Holocene epoch. How and why has it experienced dramatic changes in the past several decades?arrow_forwardHow would the evolution of teeth and bones composed of calcite or aragonite, instead of dahllite, have changed the lifestyles of some vertebrates? Give some specific examples using both fossil and present-day animals. typed answer onlyarrow_forwardGive typing answer with explanation and conclusion Which of the following is the reason for existence of vestigial structures (useless parts of the body)? Question 5 options: A) They must have functioned in the near past. B) They must have functioned in similar organisms. C) They must have functioned in other organisms. D) They must have functioned in ancestral organisms.arrow_forward
- Which of the following is the correct classification for the following chordate animal: This is a tetrapod vertebrate that may live its live partly in water and partly on land (some species fully aquatic). These animals have a tail and most of them are lungless. They respire through their skin or gills. Question 28 options: a) Class Chondrichthyes b) Monotreme c) Cephalochordata d) Reptiles (non avian) e) Birds f) Urodela / Salamanders g) Anura / Frogs h) Eutharia i) Class Osteichthyes j) Marsupial k) Superclass Agnathaarrow_forwardThe animals body plans that emerged from the Cambrian Explosion were multi-cellular and significantly larger than animals that predated the Cambrian. This required the ability to use the process of aerobic respiration to more efficiently break down food molecules. What are two milestones that occurred in the Eon(s) that predated the Cambrian explosion that allowed for this more efficient form of energy production? (List both the milestone and the Eon in which it occurred)arrow_forwardUse the data (shown in red) to calculate the percent of embryos that developed at each pH (questions 27-29) % Developed (fill this column in) pH # of tadpoles # tadpoles+ eggs 10 40 27) 20 43 28) 7. 22 23 29) Use that data in the table above to answer the following questions. What pH had the greatest negative effect on amphibian development? Which pH had the least effect on amphibian development? Based on these results what effect do you think acid rain has on amphibian development?arrow_forward
- Imagine if mermaids are real. What are their biological and Physical demands (LOCOMOTION, BREATHING, and THERMOREGULATION)?arrow_forwardDiscuss the trade-offs associated with the following life history traits: a. Metamorphosis b. Body size c. Diapause d. Samelparity / Iteroparity e. Age at sexual maturityarrow_forwardDinosaur and ancestral bird fossil data from the Triassic, Jurassic, and Cretaceous time periods were used to estimate body mass. Scientists are examining the connection between body mass, niche saturation, and extinction of species in the Triassic, Jurassic, and Cretaceous time periods. The terrestrial dinosaurs’ neck length and diet are compared to the evolution of the winged dinosaur through the three time periods. Which of the following statements best states the null hypotheses regarding winged dinosaurs? The greater number of herbivore dinosaurs throughout all the periods inhibited the evolution of winged dinosaurs due to a lack of available resources and habitat. A greater number of winged dinosaurs of the early Cretaceous period become extinct as fewer winged dinosaurs with greater body mass evolve to take over their niche. The extinction of long-necked herbivores in the late Jurassic period provided a greater amount of habitat and food resources for early Cretaceous…arrow_forward
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