We started this lab by cutting the squid vertically across its back to observe the major organs in its mantle. We mostly focused on the circulatory system, and also looked at the ink sac and the reproductive organs. We learned about how the squid's tentacles work and why two are longer than the others. I also sharpened my cutting abilities.
Squids are in the phylum Mollusca. Organisms in this phyla have bilateral symmetry and an open circulatory system. Squids reproduce sexually by releasing sperm into the water for females to collect. They also have hard exoskeletons that protect them, but they also have three germ layers to help if anything gets past their skeleton. They also have a complete digestive system with a mouth, anus and many other organs in between.
Ecology
Squid have barbed tentacles that they use to grab prey and tear into its flesh. They also have two extended arms covered in teeth. Some species of squid hunt cooperatively, in groups, in order to hunt larger species. Squid are mainly saltwater animals, and inhabit the oceans.
Squids are in the phylum Mollusca. Organisms in this phyla have bilateral symmetry and an open circulatory system. Squids reproduce sexually by releasing sperm into the water for females to collect. They also have hard exoskeletons that protect them, but they also have three germ layers to help if anything gets past their skeleton. They also have a complete digestive system with a mouth, anus and many other organs in between.
Ecology
Squid have barbed tentacles that they use to grab prey and tear into its flesh. They also have two extended arms covered in teeth. Some species of squid hunt cooperatively, in groups, in order to hunt larger species. Squid are mainly saltwater animals, and inhabit the oceans.