Lab reports and the journal about the Mammalian Class

Lab reports and the journal about the Mammalian Class

I. Date of Pratum: April 18, 2016

II. Title of Pratikum: Mammalian Class

III. Purpose of Pratikum:

1. To recognize the characteristics of Mammals that are important for identification

IV. Basic theory:

In general all types of mammals have hair that covers the body. The amount varies from one species to another, there is a species whose whole body is covered in a rupture somewhere on its body part. Mammals are animals homo-humor or often called warm-blooded animals (Suni ;, 2013: 245).

Based on the size of mammals dibagia into two large and small mammals. International programs define that large mammal is a large-sized mammal (Eisenberg, 2008: 75).

The most perfect vertebrate is a class of mammals where the cellular level of pisces, amphibians, reptilian and aves (Herlina, 2001: 243).

V. Tools and Materials:

A. Tools

1. Stationery and Paper

2. Surgical tray

3. Jar

B. Materials

1. Several types of Mammalian members

VI. Ways of working

1. Drawn and given full details of the anatomy of the tengkorang one specimen provided of dorsal, ventral and posterios

2. Written and formulas called dental type molanya

3. Identified a given mouse and made its description.

VII. Observation result

VIII. Discussion

Mammals are vertebrate animals primarily characterized by the presence of the mammary glands, which in females produce milk as their child's dietary source. Its main feature is to have a milk gland (gamma mammae) that serves to nurse its newborn child. Her body is mostly covered by hair, her jas is equipped with various glands, her jaw is generally equipped with teeth. Mammals also have limbs (movers) that are suitable for walking, climbing, digging, flying and flying. His fingers are equipped with claws, nails or strokes. Mammals are warm-blooded or endothermic, and fertilization in mammals is internal fertilization.

The mammal class has a different type of tooth that corresponds to the food it eats. In addition to the lower animals in mammalian class animals have different forms, ie procecus coronvidalis (very large), procecus condylis (strong) and procecus angulaaris (largest).

The mammalian class has many orders, including the order monotermata, marsupialia, langomorpha, rodentia, primates, etc. The order of langomorphas is a mammal series of teeth similar to the order of rodentia but has 4 incisors or more like a chisel. The back legs are longer than the front legs and are adapted for running and jumping for example rabbits (Leupuhnigri collis)

The order of rodentia is a rodent mammal that has continuous, for example hamsters (Cricetus sp) due to incisors that grow continuously causing the animal to castrate whatever is present.

Breeding with vivipar beranak or childbirth and laying (ovipar). The monotremata order is the only mammal that is breeds by laying (ovipar). For example the famous monotremata order is Platypus sp. From australia who lives in the river. While the example of Indonesia is nokdoak or irrigated hedgehog (Zaglossus bruijni). Monotermata have no nipples, but still have milk glands. This means that monotermata qualify for entry into the mammalian class. While the order marsupilia for example kangaroo

The primate order is a mammal with opposing thumbs and long limbs, forward-facing eyes, branched cerebral cortex, omninivore eg human (Homo sapiens) and long-tailed macaca fascicularis and pongo pygmeus orangutans. Orangutans are primates that can only be found in Kalimantan and Sumatran forests. Currently, orangutans are only slightly left and are threatened with extinction due to wild hunting, forest burning. Humans have heterodont teeth.

IX. Conclusion

1. Mammals are vertebrate animals primarily characterized by the presence of mammary glands.

2. His body is mostly covered by hair.

3. Jaws are generally equipped with teeth.

4. Mammals are warm-blooded animals.

5. Mammalian class has many orders, including monotermata order, marsupialia, langomorpha, rodentia, primate, etc.

6. The langomorpha order has 4 incisors or more like a chisel.

7. The order of rodentia is a rodent mammal that has incisors such as chisels that grow continuously.

8. Breeding with vivipar beranak or childbirth and laying (ovipar).

9. The primate's order is a mammal with a thumb and a long member of motion.

10.. Humans have heterodont teeth.