One advantage an exoskeleton provides is a strong outer layer that acts as armor against predators and environmental hazards. It also serves as a protective water barrier, and it imparts advantages related to structure and mobility.Know More
Like endoskeletons, exoskeletons provide structure and support to an animal's body. However, exoskeletons encase all of an animal's living tissues, protecting them from damage and attack. Muscles used for locomotion attach directly to the exoskeleton, giving the animal better leverage for rapid movement.
One of the most important functions of an exoskeleton is to prevent land-dwelling species from drying out. This is crucial because of the vital role played by water in physiological processes. On the other hand, an exoskeleton protects ocean-dwelling animals from being affected by small changes in the saltiness of water in their environment.
While some exoskeletons are dense, such as the hard shells of clams, the exoskeletons of insects are lightweight, making it possible for them to fly. Being nonliving, an exoskeleton does not grow with an animal. Therefore, it must be periodically shed in a process called molting. A new exoskeleton is then formed from epidermal secretions. This process consumes metabolic resources, and the animal is vulnerable until the new exoskeleton hardens.Learn more about Zoology
Grasslands are habitats for grazing animals like buffalo, elk and whitetail deer in North America and zebra and antelope in Africa, where herds support predators like lions and cheetahs. Other large mammals living in the grasslands include the African wildebeest, giant anteater of South America and Przewalski's horse.Full Answer >
The four basic needs of any animal are food, water, shelter from predators and weather, and adequate space in which to find nourishment and attract a mate. This list presupposes the need for oxygen, without which all animals perish.Full Answer >
Rhinoceroses have evolved large facial horns and thick skin to help protect them from predators and developed broad feet and legs to help support their bulky frames, according to Animal Diversity Web. Additionally, rhinoceros mouths have evolved differently among various species. Those species that are selective feeders have narrow, prehensile lips, while those that graze on grass have broad lips.Full Answer >
Butterflies use warning colors and concentrations of poison within their bodies to ward off predators. They also utilize camouflage, large eye spots, mimicry and flight to avoid being eaten.Full Answer >