Free Essay

The Dog

In:

Submitted By Markeila23
Words 514
Pages 3
Name: |Date: | |Graded Assignment

Lab Report

Create a dichotomous key that identifies the 10 leaves on the Common Leaves sheet. Look closely at those leaf samples and devise a dichotomous key that helps you identify them. Be sure that your dichotomous key contains only pairs of statements about a single characteristic. For example, a pair of statements might be:

A. leaf margin smooth B. leaf margin toothed

However, you should avoid pairs of statements that do not address the same characteristic. The following pair, for example, would not be very informative in your key:

A. leaf margin smooth B. leaf type needle-like

As you develop your key, test it out with the 10 leaves provided on the Common Leaves sheet. When you've developed a key that identifies all 10 leaves, type your statements, “go tos,” and identifications, following the format in the example below. The example is based on this lesson’s dichotomous key for birds.

|Statement 2a |The bird has a crest of feathers on the top of its head. |go to statement or |blue jay |
| | |identify bird | |
|Statement 2b |The bird has a smooth head. |go to statement or |3 |
| | |identify bird | |

Once you have completed your dichotomous key, answer the two remaining questions. When you are finished, submit this assignment to your teacher by the due date for full credit.

(20 points)

|Score |
| |

1. Complete a dichotomous key for the 10 leaves on the Common Leaves sheet. The chart provided here allows for 11 pairs of statements. Depending on how you build your dichotomous key, you may or may not need all of them, or you may need to add some.

|Statement 1a | |go to statement or | |
| | |identify leaf | |
|Statement 1b | |go to statement or | |
| | |identify leaf | |
| | | | |
|Statement 2a | |go to statement or | |
| | |identify leaf | |
|Statement 2b | |go to statement or | |
| | |identify leaf | |
| | | | |
|Statement 3a | |go to statement or | |
| | |identify leaf | |
|Statement 3b | |go to statement or | |
| | |identify leaf | |
| | | | |
|Statement 4a | |go to statement or | |
| | |identify leaf | |
|Statement 4b | |go to statement or | |
| | |identify leaf | |
| | | | |
|Statement 5a | |go to statement or | |
| | |identify leaf | |
|Statement 5b | |go to statement or | |
| | |identify leaf | |
| | | | |
|Statement 6a | |go to statement or | |
| | |identify leaf | |
|Statement 6b | |go to statement or | |
| | |identify leaf | |
| | | | |
|Statement 7a | |go to statement or | |
| | |identify leaf | |
|Statement 7b | |go to statement or | |
| | |identify leaf | |
| | | | |
|Statement 8a | |go to statement or | |
| | |identify leaf | |
|Statement 8b | |go to statement or | |
| | |identify leaf | |
| | | | |
|Statement 9a | |go to statement or | |
| | |identify leaf | |
|Statement 9b | |go to statement or | |
| | |identify leaf | |
| | | | |
|Statement 10a | |go to statement or | |
| | |identify leaf | |
|Statement 10b | |go to statement or | |
| | |identify leaf | |
| | | | |
|Statement 11a | |go to statement or | |
| | |identify leaf | |
|Statement 11b | |go to statement or | |
| | |identify leaf | |

(3 points)

|Score |
| |

2. Can more than one dichotomous key be developed to identify the same group of organisms? Explain. To answer this question, refer to this lesson’s dichotomous key for birds.

Answer:

(3 points)

|Score |
| |

3. If two different people use the same dichotomous key to identify the same organism, should they have different results? Explain.

Answer:

|Your Score |___ of 26 |

Similar Documents

Premium Essay

Dogs

...domestic dog. For related species known as "dogs", see Canidae. For other uses, see Dog (disambiguation). Page semi-protected Domestic dog Temporal range: 0.033–0Ma PreЄЄOSDCPTJKPgN ↓ Pleistocene – Recent Collage of Nine Dogs.jpg Nine different dog breeds Conservation status Domesticated Scientific classification Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Carnivora Family: Canidae Genus: Canis Species: C. lupus Subspecies: C. l. familiaris[1] Trinomial name Canis lupus familiaris[2] Synonyms Species synonymy[show] The domestic dog (Canis lupus familiaris,[2][3] or Canis familiaris) is a member of the Canidae family of the mammalian order Carnivora. The term "domestic dog" is generally used for both domesticated and feral varieties. The dog was the first domesticated animal[4][5] and has been the most widely kept working, hunting, and pet animal in human history.[citation needed] The word "dog" can also refer to the male of a canine species,[6] as opposed to the word "bitch" which refers to the female of the species. The dogs' value to early human hunter-gatherers led to them quickly becoming ubiquitous across world cultures. Dogs perform many roles for people, such as hunting, herding, pulling loads, protection, assisting police and military, companionship, and, more recently, aiding handicapped individuals. This impact on human society has given them the nickname "man's best friend" in the Western world. In some cultures, however, dogs are...

Words: 254 - Pages: 2

Free Essay

The Dog

...the dog The text is about an Irish man who is walking his dog his name is John Shields, he seems to be a very normal man with a wife two kids and a dog. The typical little happy family, he works at a gas station properly not too far away from home. He is executive officer, which is a pretty respected rank in that area. I can imagine he might be one of them fathers who would take his kids out on trips and have a good time while doing it. In the story he walks on a quiet country road by Lisburn. He properly doesn’t walk the usual routine with his dog, because suddenly the footpath stops and he tightens the leash, but he keeps on moving the new way. Cars are driving bobbing up and down the hills, and there lights kind of dazzled his sight a little. Then a car comes up which park in front of him and his dog, a man comes out of the car and begins shouting at him and aiming a gun at him. The man tells him to get in the car, John Shields dog gets in the car as soon as the door is being opened for it, because its properly used to go into cars it is being invited by the humans to do so, I know my dog is. And after getting threaded by the gunman he finally gets in the car, and find out there are two men, a driver and the gunman. Then the story sort of begins where the two terrorists starts asking him a lot of questions and frequently thread to kill him. I think in the start the atmosphere is very quiet, and very relaxing, he’s out on the big grass fields with lots of hedges and...

Words: 1051 - Pages: 5

Premium Essay

Dogs

...enlgish 921 potty The dog is a loving companion to a man. He is happy to go everywhere with his master. He shows his affection for his master by wagging his tail and licking his hand or face. Dogs were not always like this. Overtime humans have domesticated dogs into making them loving pets. At one point dogs were able to pee wherever they want, eat whatever they want, and do whatever they want. Now we provide our dogs boundaries and train them to become our best friends. Eating and playing comes naturally to dogs just as it does to humans when they are born. Just like human babies one thing that does not come naturally to dogs is being potty trained. Adding a furry litte friend to the family sounds like a lot of fun and many would not think of it as such a difficult task to do since all dogs do is eat and play which obviously does not need to be taught to then but the hard part comes when it is time for them to relieve themselves and they choose do to this task on your living room floors, bedrooms, and bathrooms. For most dog owners who have little to no dog experience potty training can be a very difficult task to do but I am here to make this job a tad bit easier for you and your furry friend. Potty training your dog or puppy requires far more than a few stacks of old newspapers, it calls for vigilance, patience, plenty of commitment and above all, consistency. The first step to potty training is introducing the spot you would like your dog to go potty. Like babies, puppies...

Words: 902 - Pages: 4

Premium Essay

Dogs

...compares in import to the dog here at Cold Antler Farm. Dogs get the lion’s share of attention, love, and care. They live in the house with me. They share my bed and furniture. They get the best medical attention, food, and effort I can afford. Dogs are not livestock to me. They are not children, siblings, or any other simulacrum of human interaction. They are my dogs. That is enough. I am a dog person. When I say that, I do not mean that as a subculture identifier. I do not spend my evenings in paw-print embroidered sweatshirts scouring Petfinder.com to foster homeless canines or sifting through breed-specific email lists. Dogs are not my hobby, occupation, or entertainment. When I say “I am a dog person,” I mean that my personhood is intensely connected to, and made better through, my life with dogs. They are my partners in living in this world. And I don’t mean “partners” as a replacement for a human spouse or family, not at all. I mean partners in the most basic way possible. They are my wingmen, staff, and teammates. We exist in a primal partnership that has sung the same long howl since before any human beings had surnames or used complex tools. We ran beside each other long before memory-foam dog beds and Nylabones. This partnership is ancient and ceremonial. It is the combination of two amazing stories, shared over meat and firelight. It is our legacy and privilege to share our lives with another beast so in tune and useful to us. Dogs chose us. Unlike cats, horses...

Words: 432 - Pages: 2

Free Essay

Dogs

...The dog is a loving companion to a man. He is happy to go everywhere with his master. He shows his affection for his master by wagging his tail and licking his hand or face. If his master is blind, the dog helps him to cross the street and acts as his loving guide. No man can feel lonely when he has a dog for company. A dog keeps watch over his master’s house. He will not allow anyone to touch anything belonging to his master. He will bark when a stranger approaches the house. He might even bite a thief who is not scared away by his bark. A dog is useful to a shepherd to look after his sheep. If any of the sheep stray from the flock, the dog will bring it back. He will not allow a wolf or fox to attack the sheep. A dog is useful in catching thieves and criminals. The thief may hide anywhere. Yet the dog will use his keen sense of smell to find out where the thief is hiding. Police dogs are used to catch murderers and criminals. The dog by his sense of smell will lead the police to the hiding place of a murderer. A dog is loyal and faithful to his master. Nothing will induce him to leave his master. His master might be a poor man or even a beggar but, still his dog will not leave him to go with anyone else. A dog worships his master as if he were a God. A dog has a sharp sense of hearing and smell. He can hear footsteps from a great distance. At night he will be up and about at the least sound. He can smell his master from far off. He will rush out of the...

Words: 392 - Pages: 2

Free Essay

Dogs

...Introduction: It is not unfamiliar to see lots of news that the dogs are treated in inhumane ways. In April this year, two junior high school students in Chunghwa post a video on the internet that they shoot at a chained dog on the street with BB guns, imitating an online surviving game for fun(謝忠義). After hundreds of netizens denounce their behavior, they modify their previous remark and say that they just want to protect themselves from dog’s attack. Besides, according to some shocked news(流浪狗悲歌), animal shelters in Taiwan house about 100,000 stray dogs and more than 60,000 of them are euthanized within a year. Some shelters even drag them brutally and pitiless, euthanize them without using the narcotic, and let them die in strong pain. In recent years, the controversial argument about human’s animal-consciousness is increasing. Seeing so many cases that expose the inhuman way imposed on dogs, some people start to think about the way they treat the dogs and manage to find more appropriate ways to solve these problems. For example, in Taiwan, the government has enacted the law, imposing heavy fines on the ones who abuse dogs in cruel way. Even in Germany, the government legislates for animal welfare in order to reduce the account of stray dogs(蔡喬丹). If violators dump dogs, they have to pay NT 900,000 or may be sentenced 2 years in jail. Recently, people constantly debate on animal protection. Some people think that it’s necessary to get rid of the animals which cost lots of...

Words: 841 - Pages: 4

Premium Essay

Dogs

...Dogs Dogs are warm blooded mammals. The term "domestic dog" is generally used for both of the domesticated and feral varieties. The English word dog comes from Middle English dogge, from Old English docga, a "powerful dog breed".[9] The term may possibly derive from Proto-Germanic *dukkōn, represented in Old English finger-docce ("finger-muscle").[10] The word also shows the familiar petname diminutive -ga also seen in frogga "frog", picga "pig", stagga "stag", wicga "beetle, worm", among others.[11] The term dog may ultimately derive from the earliest layer of Proto-Indo-European vocabulary, reflecting the role of the dog as the earliestdomesticated animal.[12] In 14th-century England, hound (from Old English: hund) was the general word for all domestic canines, and dog referred to a subtype of hound, a group including the mastiff. It is believed this "dog" type was so common, it eventually became the prototype of the category "hound".[13] By the 16th century, dog had become the general word, and hound had begun to refer only to types used for hunting.[14] Hound, cognate to German Hund, Dutch hond, common Scandinavian hund, and Icelandic hundur, is ultimately derived from the Proto-Indo-European *kwon- "dog", found in Sanskrit kukuur (कुक्कुर),[15] Welsh ci(plural cwn), Latin canis, Greek kýōn, and Lithuanian šuõ.[16] In breeding circles, a male canine is referred to as a dog, while a female is called a bitch[17] (Middle English bicche, from Old English bicce, ultimately from...

Words: 336 - Pages: 2

Premium Essay

This Dog: A Houdini Dog

...This dog. She drives me insane, I swear she’s a houdini dog. I leave her outside for too long and this dog is digging holes under the fence. She has gotten out so many times. She’s an 11 pound pomeranian so she’s pretty small. So the first little story goes something like this. I left Maci outside and left for internship and thought someone would let her in. Nope. I came home and Maci was gone and I panicked because she doesn’t have her ID tag or collar on because she got a bath the night before. So my sister and i got on the moped and went all over the neighborhood looking for her. We asked people if they have seen her and we got told where she was last. So I have recently moved in with my sister in with my sister and my old house and her...

Words: 590 - Pages: 3

Free Essay

Dogs

...Dog Swimming a. importance of swimming Just as swimming for people is recognized for its conditioning and therapeutic value, so has it been recognized for “man’s best friend” -the dog. For dogs that are overweight, need conditioning, or have disabilities that make normal exercise painful or inappropriate, swimming can provide an excellent alternative or supplement to ground-based programs. Also, swimming can provide dogs excellent rehabilitation therapy, aerobic conditioning, exercise, relaxation, interaction with other dogs and great of fun! b. how to swim Dogs, like all animals, have the natural ability to swim but generally have to learn water confidence before a specific swimming program can be developed. There are two swimming pools in our company. A training pool provides the initial swimming introduction and allows the dog to gain their water confidence. The main pool allows the dog to swim in 30 yard laps or to swim freely to retrieve, train or just swim for the fun of it. Swim Center staff performs the initial swimming of the dog, but owners are encouraged to take over once the dog has graduated from the training class. Dogs wear a chest harness for support and are walked down a gentle sloping ramp into the water. For dogs with paralysis or inability to walk, they are gently lifted and placed into the water and supported by the harness, or in some cases a flotation device may be used, while they develop their swimming stroke. Once the dog is comfortable...

Words: 973 - Pages: 4

Free Essay

Dogs

...The results of the study scaled the dogs on five dimensions of behavior temperament: playfulness, curiosity/fearfulness, chase-proneness, sociability, and aggressiveness (De Palma et al., 2005). Dogs living in rescue shelters were assessed as demonstrating a low degree of playfulness, showing distraction by the environment when being enticed to play. The sheltered dogs also scored low on curiosity but, high on fearful behavior. The cortisol levels for the sheltered dogs were significantly higher than the cortisol levels of canines living in households, indicative of stress and anxiety associated with shelter lifestyle. Shelter dogs showed a low proportion of chase-proneness supported by demonstrations of low physical activity and excitability. Shelter dogs were assessed as exhibiting low levels of sociability toward conspecies but, a high sociability when concerning humans (De Palma et al., 2005). This trend was also demonstrated when observing levels of aggressiveness; the dogs seemed more antagonistic toward conspecies than humans. It should be noted that shelter dogs displayed rare bouts of hostile behavior and results were supported by little data. It is interesting to find a set of shared characteristics existing in canines living in rescue shelters. Such findings lead one to speculate if the shelter environment may be partly responsible for inducing behavior characteristics? After all, dogs living in shelters are subjected to a variety of stressors including isolation...

Words: 1161 - Pages: 5

Premium Essay

Dogs

...Domestic dogs inherited complex behaviors from their wolf ancestors, which would have been pack hunters with complex body language. These sophisticated forms of social cognition and communication may account for their trainability, playfulness, and ability to fit into human households and social situations, and these attributes have given dogs a relationship with humans that has enabled them to become one of the most successful species on the planet today.[22]:pages95-136 The dogs' value to early human hunter-gatherers led to them quickly becoming ubiquitous across world cultures. Dogs perform many roles for people, such as hunting, herding, pulling loads, protection, assisting police and military, companionship, and, more recently, aiding handicapped individuals. This impact on human society has given them the nickname "man's best friend" in the Western world. In some cultures, however, dogs are also a source of meat.[23][24] Early roles Wolves, and their dog descendants, would have derived significant benefits from living in human camps—more safety, more reliable food, lesser caloric needs, and more chance to breed.[25] They would have benefited from humans' upright gait that gives them larger range over which to see potential predators and prey, as well as color vision that, at least by day, gives humans better visual discrimination.[25] Camp dogs would also have benefitted from human tool use, as in bringing down larger prey and controlling fire for a range of purposes...

Words: 1607 - Pages: 7

Free Essay

Dogs

...Most people said that dogs are man's best friend and a great companion. They had been domesticated ever since the beginning of time. They are different breeds of dogs throughout the whole world and in this essay that I'm writing about, I'm going to compare and contrast three unique and one of some kind types of dogs that I chose to write about. They are the Basset Hound, the Chihuahua, and last but not least the Pit Bull. What makes these dogs so similar is that they are the most popular pets in the world. They ordinarily remain loyal to considerate masters, and because of this they have been called man's best friend. A dog fits easily into family life. When a master tells a dog that it is good, the animal happily wags its tail. But when a master scolds a dog, it skulks away with a sheepish look and with its tail tucked between its legs. Some dogs can herd animals in a farm, and some of them can also serve as watch dogs, or even as playful family pets. Dogs are even trained as guard dogs in peacetime by the U.S. Army and other military services. Because of their keen sense of smell, the police at times to track down escaped prisoners use dogs. Law enforcement agencies also rely on the dog's acute sense of smell to uncover illegal drugs. And specially trained dogs serve as the "eye  of the blind, guiding steps of their sightless masters around obstacles and hazards. However there are some characteristics that make the Basset Hound, Chihuahua, and the Pit Bull different from...

Words: 342 - Pages: 2

Free Essay

Dogs

...Jesus Ojeda Top Five Guard Dogs There are top five dogs when it comes to guard and protection, according to Cesar Milan these are the top five dogs; the Bullmastiff, the Doberman, the Rottweiler, the German Shepherd and the Belgian Malinois. These dog breeds have characteristics that make them the best choice when looking for a guard or protection dog. The Bullmastiff is an English dog breed obtained by crossing 60% Mastiffs with 40% Bulldogs. This dog breed dates from 1795.The Bullmastiff was used as a game keeper’s do, even though they were fierce and threatening, they were trained not to bite the prey or in case of a house, the intruder. This breed had a darkish color. But when game keeper dogs were not required anymore, people stop caring about the dark color for night camouflage and so the light fawn coloration became more popular.(AKC, “Bullmastiff”) The Bullmastiff is docile and affective but if it’s provoked it becomes fearless. In the case of a guard dog if an intruder brakes into its territory the Bullmastiff wont attack in order to kill the intruder instead it will catch an intruder, take him down, hold him down and start barking to alert its owner. This breed is also good with children; it is intelligent, even-tempered, calm and loyal. The male Bullmastiff has a height of twenty-seven inches and weighs 133 pounds. They can do okay in an apartment if sufficiently exercised. They cannot tolerate extreme temperatures .With a life expectancy of ten years the Bullmastiff...

Words: 1363 - Pages: 6

Free Essay

Dogs

...Most people said that dogs are man’s best friend and a great companion. They had been domesticated ever since the beginning of time. They are different breeds of dogs throughout the whole world and in this essay that I’m writing about, I’m going to compare and contrast three unique and one of some kind types of dogs that I chose to write about. They are the Basset Hound, the Chihuahua, and last but not least the Pit Bull. What makes these dogs so similar is that they are the most popular pets in the world. They ordinarily remain loyal to considerate masters, and because of this they have been called man’s best friend. A dog fits easily into family life. When a master tells a dog that it is good, the animal happily wags its tail. But when a master scolds a dog, it skulks away with a sheepish look and with its tail tucked between its legs. Some dogs can herd animals in a farm, and some of them can also serve as watch dogs, or even as playful family pets. Dogs are even trained as guard dogs in peacetime by the U.S. Army and other military services. Because of their keen sense of smell, the police at times to track down escaped prisoners use dogs. Law enforcement agencies also rely on the dog’s acute sense of smell to uncover illegal drugs. And specially trained dogs serve as the “eye” of the blind, guiding steps of their sightless masters around obstacles and hazards. However there are some characteristics that make the Basset Hound, Chihuahua, and the Pit Bull different...

Words: 348 - Pages: 2

Free Essay

Dog Training

...all want  a well behaved dog; especially if you have children, neighbors, family, and possibly a girl/guy friend. So what are the basics to a good dog? There are many things every dog should know, but sadly as we all know there are a lot of things (that are very important) that most dogs don't know. What it all comes down to is the trust an bond you have with your dog,  Remember, a good dog doesn't do tricks, a good dog listens and obeys out of respect not fear or dominance.  Step 1"No" & "Yes!" i * * The 1st "No" is not "NO!" and "Yes" should be "YES!!" When we first get our dogs we like to make sure they know who's boss. "No!" This word is thrown around very loosely around dogs. My belief is "No!" should be "No." Firm and calm, not controlling and angry.  Don't be fooled into thinking 'My dog is an ancestor of the wolf therefore i need to dominate him.' We domesticated dogs to work with us, so why are we so convinced that they don't want to respect us and listen to us? Dogs where created to do work on our behalf, any dog that is misbehaving is crying out for you to pay attention and to listen. There are very few cases where you do need to tend to the dog's behavior due to abuse and sociological damage; i seen several dogs with this problem their owners are very pleased with the work I've done.  Once you begin to work with your dog you must give the right responses.  for example: let's say you are trying to teach your dog the "Down" command. Instead...

Words: 994 - Pages: 4