Perhaps the climate became drier, and leaves became scarcer. Answer: True. So did Kayla. Lamarcks idea was that each would have to undergo separate, internal change. Zach and Cleo do lunch. Between the span of 15 and 9 million years ago, these C. Male giraffes wrestle with their necks over access to females. All living things respond to changes in the world around them. Giraffes evolved from antelopes, some of whom happened to have longer necks than others. Answer: True. True or False: Giraffe hearts can pump 16 gallons of blood in one minute? Imagine a population of giraffes- some with short necks, some with medium length necks, and some with long necks. long-term changes in the environment. Likewise, he believed that wading birds, such as herons and egrets, evolved their long legs by stretching them to remain dry. But none of those other causal explanations make sense without specification of the final cause. All living things have the ability to reproduce, or procreate. 07: CURLING IRON (4.63) Kayla and Khloe discover the true calling of a Fitness Center. with similar habitats are found to have similar characteristics even though they originated from different species that did not have these characteristics. It explains how giraffes came to have such long necks, like those shown in the photo below. They describe how male giraffes fight by clubbing opponents with their large, massive heads; the neck plays the role of a muscular handle. Lamarck described his explanation that giraffes living under a tree with leaves would grow long necks to reach the leaves. Since long-necked males mate more frequently, selection works in favor of long necks. The largest (longest-necked) males are dominant among other male giraffes and mate more frequently. C) Only favorable adaptations have survival value. Some giraffes had necks a little longer than the average. E) If the giraffes did not have to compete with each other, longer necks would not have been passed on to the next generation. C) Only favorable adaptations have survival value. D) Disuse of an organ may lead to its eventual disappearance. Eventually, a new species, with long necks evolved. Zach locates their centers and makes it fit. Creationists Kofahl and Segraves tell us that civilization quickly redeveloped after the flood because the survivors carried over the prediluvian culture: Noah lived 350 years afterwards, Shem 502 (The Creation Explanation, p. 227).During this time, people were fanning out and "replenishing the earth," About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Answer: True. True or False: Giraffes have the largest eyes of any land mammal? Over time trees get taller and it PERFECTLY! ____ 4) Which of the following is the most accurate summary of Cuvier's consideration of fossils found in Not only was the ark without pedigree, it was without descendants also. Welcome to BBC Earth, a place to explore the natural world through awe-inspiring documentaries, podcasts, stories and more. Giraffes' necks may have evolved for sexual competition. ____ 2) Natural selection is based on all of the following except D) Disuse of an organ may lead to its eventual disappearance. The sexual reason why giraffes have long necks 2022-06-08T00:58:47.778Z Paleontologists from the Chinese Academy of Sciences discovered that the elongation of the neck of the giraffes would not be part of the adaptation to feed but for sexual reasons. Mammals, like whales and giraffes, do so by giving birth to young. For example, Lamarck thought that giraffes evolved their long necks by each generation stretching further to get leaves in trees and that this change in body shape was then inherited. Time to pump iron. A reason giraffes have long necks is to let them browse high foliage; this final cause does not displace formal (variation and natural selection) and material (genetic) explanations; nor is it an efficient cause (Lamarkianism). True or False: Even though giraffe have longer necks they have the same number of vertebra as humans? Then, as now, giraffes fed on tree leaves. In the past, giraffes had short necks. C) Only favorable adaptations have survival value. So did half the mall. He mostly ate her. True. What were these mammals like before and why did they evolve like this? News/Politics 2022-06-04T14:45:41.995Z. True or False: Giraffes can reach their ears with their tongues? Therizinosaurus (/ r z n o s r s /; meaning 'scythe lizard') is a genus of very large therizinosaurid that lived in Asia during the Late Cretaceous period in what is now the Nemegt Formation around 70 million years ago. E) If the giraffes did not have to compete with each other, longer necks would not have been passed on to the next generation. E) If the giraffes did not have to compete with each other, longer necks would not have been passed on to the next generation. Similar news: The sexual reason why giraffes have long necks 12 mins You may like. Each result suggests that long necks did not evolve specifically for feeding at higher levels We thus find little critical support for the Darwinian feeding competition idea. Their report, published in The American Naturalist (1996), undermines both Lamarck and Darwins neck-stretching leaf-eating theory. C. They are caused by exceptionally harsh, short-term conditions. D) Disuse of an organ may lead to its eventual disappearance. All living things consume energy (they eat food), and use that energy for work, play, and growth. Heidi found it spicy. Darwin said that some are born with long necks that would spread through the population. Exhibitionist & Voyeur 11/24/19 Exhibitionist & Voyeur 11/16/19: Be My Guest Ch. But there was a chance variation in neck length.