What is the external covering of an animal called?
Skin: the outer covering of an animal that protects it from its environment.
Which group of animals have skin with hair on most or some of the body?
mammals
The skin with hair is a defining characteristic of mammals. It is found in all mammals and on other animals.
What animal has a two chambered heart?
Fish
Fish hearts have just two chambers, an atrium and a ventricle (Figure 1). Insects often have just a tube that pumps hemolymph (the name for the insect equivalent of blood) freely around the entire body, with a vessel to help it move.
Are there any mammals that do not have hair?
Hair is present in differing degrees on all mammals. On adult whales, elephants, sirenians, and rhinoceroses body hair is limited to scattered bristles. In most other mammals the hair is abundant enough to form a thick coat, while humans are among the most hairless of all mammals.
Where does the hair come from in an animal?
Hair, in mammals, the characteristic threadlike outgrowths of the outer layer of the skin (epidermis) that form an animal’s coat, or pelage.
What kind of animal has long silky hair?
Some breeds are notable for their long smooth coat. The Silkie, Peruvian, Alpaca, Coronet, Merino, Lunkarya, Sheba and Texel are the long haired breeds of guinea pig. Most of these breeds have shining silky hair and appears in varieties of colors. Grab our Newsletter. Never miss a list from TMW.
What kind of animal has deep guard hairs?
With a deep underfur and plentiful guard hairs on the outside, the small, nonmigratory Arctic fox may be the best-adapted of all Arctic creatures for cold temperatures down to forty-below-zero or lower.
Are there any other mammals that have hair?
Animal Diversity Web. Hair. Hair (and a coat of hairs, called fur or pelage) is uniquely mammalian. No other creature possesses true hair, and at least some hair is found on all mammals at some time during their lives.
Which is the most conspicuous hair on an animal?
The most conspicuous hairs on most mammals are the guard hairs, which overlay the fur and serve to protect it.
Why do all animals have the same color of hair?
In modern mammals, hair serves to insulate, to conceal, to signal, to protect, and to sense the immediate surroundings. Insulation serves to conserve heat, but also, as in the case of diurnal desert animals such as the camel, to protect against excessive heat. The color of most species is probably cryptic, matching the animal’s background.
What do you call the outer covering of an animal?
The term ” integument ” is applied to any outer covering of an animal. Basically, it means the skin, although many scientists describe the exoskeleton of arthropods as an integument. An exoskeleton is a coating of hard protein type substances that entierly cover the outside of the animal. It provides a place for muscle attachment.
