Animals are heterotrophic, meaning they depend on other organisms—vegetation and/or other animals—for their food items, as they cannot synthesize their particular food items as plants do through photosynthesis. Vertebrates make up a self-contained group: the subphylum Vertebrata. Invertebrates belong to a variety of teams. A crustacean’s body is protected by https://animalxxx50482.wikistatement.com/4952991/animal_sex_options