Systematists use several fundamental criteria to assign animals to phyla. Check all of the criteria that systematists would use to classify animals under specific phyla.Check All That ApplyFeeding behaviorFeeding behaviorAdult body symmetryAdult body symmetryUltimate adult body sizeUltimate adult body sizeBiogeographic distributionBiogeographic distributionMolecular dataMolecular dataGrowth pattern and larval stagesGrowth pattern and larval stagesProtostome versus deuterostome development

Systematists would use the following criteria to classify animals under specific phyla:

1. Adult body symmetry: This refers to the arrangement of an animal's body parts around a central axis. It is a fundamental aspect of an animal's form and structure.

2. Molecular data: This includes information about an animal's DNA, RNA, and proteins. Molecular data can provide insights into an animal's evolutionary history and relationships to other animals.

3. Growth pattern and larval stages: The way an animal grows and develops can provide important clues about its classification. This includes the stages of development that an animal goes through before it reaches its adult form.

4. Protostome versus deuterostome development: This refers to the sequence in which an animal's body cavities develop. In protostomes, the mouth develops before the anus. In deuterostomes, the anus develops before the mouth.

Feeding behavior, ultimate adult body size, and biogeographic distribution are not typically used as fundamental criteria for classifying animals into phyla. These characteristics can vary widely within a single phylum and are therefore not as useful for classification purposes.