animals

• Cold blooded or ectoderm - an animal whose temperature is dictated by its surroundings. Reptiles, amphibians, and fish.
• Warm blooded or endoderm - an animal that keeps its body at a constant warm temperature by generating internal heat. these animals generate heat through their metabolic processes, and they retain it by having insulating

  layers of fat, fur, or feathers.
• Carnivores live on flesh from other animals that is often nutrient-rich and easy to digest but difficult to obtain.
• Plant-eaters, or herbivores, often do not have to search far to find things to eat. The disadvantage of a plant-based

  diet is that it can be difficult to digest and is often low in nutrients.
• Omnivore, an animal that eats both animal flesh and vegetable matter.
• Asexual reproduction, animals produce offspring without needing a partner. Asexual reproduction is most

  common in simple animals such as flatworms and cnidarians.
• Sexual reproduction, involves two parents. The parents produce sperm and egg cells (gametes), which are

  brought together to form a fertilized cell (zygote) with a new and unique combination of genes.
• hermaphrodite, an animal

  that has both male and female organs. Hermaphrodites usually fertilize each other
• Internal fertilization takes place inside the female's body.