Why is this organism studied? Tobacco Hornworms are commonly studied in biology for many reasons. Some of these reasons include its short lifestyle, and its large size. The short life style allows individuals to study the cycle in depth, without it taking a very long period of time. In addition, because of the large size of the Tobacco Hornworm, it is easy to dissect, identify and study its
But since we are moving it to a environment where it will be walking across steep tree branches, then its claws will need to be able to dig in to the tree trunk. So instead of its claws sticking out, making them a homologous structure to a cat. This is convergent evolution because a fox and a cat are not very closely related, but they have traits that are related. Structure: Fur Design Function: To attract Mates Evolutionary Change: Sexual Selection Explanation: The arctic snow fox doesn’t have any designs on it fur, but due to sexual selection becoming a effect in the population than, fur design will become relevant because if the female is attracted to stripes and they had stripes then it will keep evolving to fit the females needs in fur design. Structure: Leg Function: To be able to move Evolutionary Change: Bottleneck Effect Explantation: Due to the bottleneck effect the forest fox will lose its genetic variation between leg size because the forest foxes with the shorter legs have a lower chance of survival because the ones with the longer legs will end up being more athletic.
This leaves hardly any food for the other cats and they die off. The super fast cat then breeds with another fast cat and they produce even faster cats. According to natural selection if this cycle continued we would eventually have a cheetah. Evolutionists use this theory to explain how a microorganism turned into a human. Dr. David Menton from Answers in Genesis explains why this could not happen.
Why certain birds did evolve wings however do not use them. In the 19th century a nearly complete skeleton was discovered by Richard Owen in 1863 called the Archaeopteryx. It was recognised as a bird despite its clawed forelimbs and long bony tail which resembled a reptile (Owen, R. 1863). Thomas Henry Huxley nearly immediately labelled he Archaeopteryx as a transitional fossil between birds and reptiles. He made many detailed assumptions between the Archaeopteryx and prehistoric reptiles and found that it was most similar to dinosaurs such as Hypsilophodon (Huxley, T. H. 1868) and Compsognathus (Huxley, T. H. 1870).
So many of us have so many blessings in our life that we take for granted. Psychologists call it hedonic adaptation. When we get something good in our lives, we often feel like we don’t have much, and we’ll still think about the things we don’t have. Like when a person gets a new phone, they’ll still be sad because they don’t have the latest laptop, or car, even when the laptop and car you have are still relatively new and functioning perfectly. Hedonic adaptation is our natural psychological tendency for us to dismiss what we have and take what we have everyday for granted.
This kind of experiment has been conducted long time ago by some scientists such as Aristoteles, Herophilus, and Erasistratus which performed the experiments to discover the functions of living organisms and is used until now. Chimpanzees, mice, dogs, and fish are some animals which is frequently used in the experiment. Many of this experiments (which was conducted
ISHA NAIR 17060321124 EVOLUTIONARY PSYCHOLOGY ASSIGNMENT “Evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection”. It relies on the fact that there is a genetic variation in the population which affects the phenotype (physical characteristics) of an organism. It involves mutation, natural selection, genetic drift, thought and technology. In this essay I will be doing a comparison of the Dashavatar of Lord Vishnu and Darwin’s theory of evolution and analysing it. Following are the avatars of Lord Vishnu:- 1) Matsya- this avatar is depicted as that of a fish or a human torso connected to the tail of a fish.
Animal Adaptation The animals have to compete for food so many animals must adapt by learning to eat a particular food eaten by few animals or no other animal. Toucans for example have adapted by developing a long, large bill. This allow this bird to reach fruit on branches that are too small to support the bird’s weight and to cut the fruit from the tree. Another good example is the sloth. The sloth uses behavioral adaption and camouflage to survive in the rainforest.
This could lead to extinction of that characteristic because it did not get passed on. On the other hand, the ones who survive pass on their characteristic to the next generation leading to change of morphology or behaviour of the species. The Galapagos finch birds is an example of selection in nature, Peter and Rosemary Grant observed the flinches in Galapagos Island and found out that there are 13 finch species with different behaviours and characteristic, after a drought in 1977, the average beak and body size of the bird increase, even in 1978 when the weather went back to normal, the size remains. The drought causes the smaller size birds with
This breed is also known for its wide ears which gives it a look of always being alert, their large deep green eyes and a natural black eyeliner around both eyes. Another unique physical quality for this breed is the skin flap from their mid abdomen to their high knee which assists in giving them cheetah like qualities in both speed and agility. Both adult males and females range from weights of 8-12 pounds. Distinctive Characteristics: The Egyptian mau may appeal to some owners for their intelligence, high energy and loyalty. Another appealing factor for some owners is the moderate shedding and grooming that this breed requires as