Oral isotretinoin is the best treatment for patients with moderate acne in whom antibiotics are unsuccessful and for those with severe inflammatory acne. Dosage of isotretinoin is usually 1 mg/kg once/day for 16 to 20 wk, but the dosage may be increased to 2 mg/kg once/day.
Lots of different predators will prey upon other predators: Golden eagles are well known predators of smaller hawks. Collared lizards will eat other lizards. Crocodilians will feed on other predators, such as monitor lizards, snakes and even lions that come to the water to drink. Many snakes will eat other snakes. Some frogs, like the horned frogs of South America and the African bullfrog, readily feed on other frogs.
Predator, Prey, Predation â A predator is an animal or organism that survives by eating. other animals or organisms, the prey. Mountain lions are predators that kill and eat deer. Whales are predators that prey on plankton. many other insects, such as dragonflies, moths, or other spiders. a predator killing its prey. Top predator â An apex predator; a predator at the top of its food chain. jaguars, whales, and bears are examples of top predators. food chain where larger predators are absent.