Oral Cavity – Jaws and Teeth
Carnivores have highly developed jaw lines called the temporalis muscle with wider mouths related to their head size. Their teeth are like canine teeth and they tend to chew up and down, not side to side. A few carnivores have enough energy to go without hunting for several days.
Herbivores have flat teeth, and they don’t exactly chew either. Cows for example rip grass, they chew it with their front teeth but with the help of the jaws moving side to side, it allows them to turn the plant into pulp.
Digestive Tracts
Carnivores obtain nutrients from meat so they have shorter digestive tracts. Since their diet consists of a small amount of plant material, they have small caecums (a pouch that joins up the small intestines
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They also have a bigger caecum to help break down plant material.
Stomach
Carnivore’s stomachs discharges enzymes 10 times the amount of hydrochloric acid than a herbivore or a human. The pH of a carnivore stomach is less than or equal to one. The secretion of hydrochloric acid breaks down food into liquid chyme.
Herbivore’s but in specific – cows – have four stomachs. They contain billions of bacteria and protozoa which help break down the cellulose (a carbohydrate that is a main building block in plant cell walls) in the cell walls of the plant fibers. The food then comes back up to the mouth so the teeth can grind it up again. The bacteria in the first three stomachs: the rumen, reticulum, and omasum mainly break down the plant fibers in preparation for digestion. Actual digestion takes place in the fourth and final stomach, the abomasum. Pepsin, lipase, and hydrochloric acid break down the food into integral nutrients.
Small Intestines
Carnivore: Once the food is broken down, the nutrients in the small intestine get absorbed into the blood stream. Carnivores do not have any enzymes for digesting cellulose (a carbohydrate that is a main building block in plant cell walls). The digestion and absorption of fat and protein is extremely
Pachycephalosaurians, thick-skulled dinosaurs such as the Stegoceras and the Pachycephalosaurus. (1) Ceratopsians and Pachycephalosaurs are closely related in their characteristics. Ceratopsians processed a saddle-shaped boney frill that extended from the skull to the neck and typically had horns over the nose and eyes. The most popular was the triceratops, which could reach over 26 feet and weigh in excess of twelve metric tons. Their frills served two major functions.
The relationship of the three species and their ancestors can be summarized by looking at the fossils above. It is evident that all of these three species possess fangs and other types of sharp, prominent teeth. These analogous features indicate that there is some similarity in ancestry, since they all form part of the same family group, although they come from different genus. However, there is some difference in the shape of the head. The coyote possesses a straighter jaw and more angular head. The wolf, on the other side, has a wider denture similar to the fox. These three species also share Homologous structures, such as fangs, are present in these species. Another homologous structure is the legs and ribs, since they all have a similar
The article Poor Teeth was written by Sarah Smarsh with the goal in mind being to shed light on the issue between upper and lower class society in a particularly concrete way. Teeth and dental health are an easy thing for people to imagine in their head because everyone has a set whether they’re white and shiny or black and rotted. This makes it easy to draw a comparison between people that care for their teeth and those who don’t. However, access to dental knowledge and services which the lower class often times doesn’t have is very different between the poor and the rich. While the rich stroll through life showing off their perfect glossy white rows of teeth, there are less privileged people out there with barren mouths whose weak pale gums
arg.gov.sk.ca - arg.gov.sk.ca - arg.gov.sk.ca - arg.gov.sk.ca - arg.gov Carbohydrates supply 80-90% of dietary energy. Sugars, starch, cellulose and related substances are carbohydrates. Starch is more easily digested than cellulose. Grains are easy to digest as they are 60-80% starch. A recent study conducted by Sharon R. Bullimore et al.
Wolves feast mostly on meat, though a study proves that they prefer fish to the land animals they are usually known for hunting. A wolf is considered obligate carnivores that need to have meet in their diet to stay healthy. Wolves digestive system is very efficient and can digest most of the things they eat for example is a piece of bone is not dissolved in the digestive system the wolve body wraps it in pieces of undigested fur so that no damage is done to the wolves organs.
such as bamboo and stems. They have strong teeth that help them to chew through even the
Food are also essential to all species that categorises them amongst three groups of nutrients they eat, thus making it easier for scientists to group species. Animals can be carnivores which enables them to obtain calories and energy by eating meat, such as, wolves. Herbivore organisms eat plants as their source of energy and nutrients, for example, horses. Omnivores are a collective group of animals that receive energy from both plants and animals, for example, chickens. Therefore different living things are exposed to hunting for different types of food (Burchill,
Likewise, the secret to their efficient feeding lies in many dental and digestion adaptations ranging from their specially adapted teeth and jaws to their gut. First off, the Diplodocus have a row of blunt peg-like teeth in the front end of their jaw. The Diplodocus fed by first opening its mount, slotting the stems of the vegetation in-between their teeth, closing their jaw, and finally pulling back, stripping the foliage off into their
All primates have essentially the same kinds of specialized mammalian teeth adapted to eating a wide variety of foods. Beginning at the front, each quadrant of the mouth has 2 incisors, 1 canine, and varying numbers of premolars and molars. The incisors are used like scissors for nipping off pieces of food. The pointed canines are for piercing and tearing. The premolars and molars, with their cusps, are used to grind and smash food. In platyrrhine species, there are 3 premolars and 2 or 3 molars. This results in a dental formula of 2.1.3.2 or 2.1.3.3. In contrast, all of the catarrhines have 2 premolars and 3 molars, making a dental formula of 2.1.2.3. The chimpanzee shown below is an Old World anthropoid species and, therefore, has a catarrhine dental formula.
An animal that eats plants acquires some of the stored energy by consuming the plant; Herbivorous are then used for food by meat eaters and then they pass on the energy to them.
The adaptations that the Axolotl’s have have greatly increased their chances of survival and their overall fitness. The Axolotl’s cone shaped teeth allows them to catch food so that they may easily do their “vacuum” action to eat food. This favorable trait grips whatever food they are going to eat, so that the Axolotl may hold potential food in its mouth easily.... ... middle of paper ... ...
Not many people know this but cows have a four compartment stomach. “The stomach includes the rumen, reticulum, the omasum, and the abomasum” (University of Minnesota). The rumen is located on the left side of the body and can hold 25 gallons or more of material. The rumen is a storage area for feed. The reticulum is in the front part of the body and is the drop off area for heavy or dense feed. The omasum absorbs water and other substances from contents the cow digests. The abomasum is where hydrochloric acid and
The front or forepaws have long retractable claws. This means he can pull his claws back into his paws when not using them to hold his food or grip the ground when he walks. Jaguar's tongue is bumpy so that he can separate skin from meat and strip it off the bones.... ... middle of paper ...
The Koala's digestive system is also adapted to detoxify the poisonous chemicals in the leaves. Koalas have a special fibre-digesting organ called a caecum, which is very long (200 cm). The caecum contains millions of bacteria which break down the fib...