The largest phyla in kingdom animalia are phylums: Mollusca, Porifera, Cindaria, Platyhelminthes, Nematoda, Annelida, Arthropoda, Echinodermata, and Chordata, our own phylum. PHYLUM NEMATODA: Phylum nematoda consists of only roundworms, some that are parasitic.
How it Works. You have up to 4 months from the date of enrollment to complete your personal trainer course. However, you may complete the course as quickly or as slowly as you would like within that 4 month period. It takes the average ISSA student 10 weeks to get certified.
Personal Trainer Careers Basics. A personal trainer works one-on-one with a client to develop and implement a fitness training regimen that helps them lose weight, get stronger, improve physical performance or maintain their health. Trainers introduce clients to individualized exercises that are based upon their personal goals, skill level and needs.