What is the difference between  Amphioxus and Ammocetes based on its common structures.

Q: Outline the life cycle of a gordiid nematomorph.

A: Ecdysozoans are a group of protostome animals that include nematodes, arthropods, and numerous…

Q: Some literature lists the 4 groups of protozoans as: 1) Flagellates 2) Amoebas 3) Ciliates 4)…

A: Introduction Protozoans come under the kindom protista. They are eukaryotic and single-celled…

Q: Where is the splenic tissue found in Petromyzon?

A: Introduction Petromyzon comes under the taxa cyclostomes which means round mouth. Cyclostomes…

Q: What structure distinguishes rhizaria from all other protists?

A: Protists are usually eukaryotic organisms. They are microscopic usually unicellular organisms. They…

Q: Paramecia that live in freshwater have contractile vacuoles, while those that live in salt water do…

A: It is a single celled protists that are naturally found in aquatic habitats.

Q: Describe the differences in the coelomic systems between Oligochaetes and Polychaetes. How do the…

A: differences in the coelomic systems between Oligochaetes and Polychaetes Polychaetesare a subclass…

Q: Why is this phylum porifera considered just above the protozoan level of organization?

A: The pore carriers or pore carrying species are referred to as "Porifera." Sponges are shown to be…

Q: In Hydrozoans such as the Obelia pictured above, what do gastrozooids and gonozooids have in common,…

A: Hydrozoa are taxonomic class of tiny, predatory creatures, a few lone and some colonial, the vast…

Q: What is the function of the ventral disk of Giardia lamblia trophozoites? How do you characterize…

A: Introduction :- Giardia can connect to the intestinal epithelium using its ventral disk, where it…

Q: The paraphyletic phylum Choanozoa contains chytrid zoospores and human sperm, among many other…

A: Choanozoa phylum, also called as Choanoflagellata is derived from Greek and Latin words meaning…

Q: Give three differences between Petromyzon and ammocoetes?

A: Petromyxon also known as lamprey is a jawless fish. It is a parasite and thus known as parasitic…

Archaeal cell structure

Bacteria and archaea are two different prokaryotic domains that, along with eukarya, make up the three domains of life. Archaeal organisms can be found all over the biosphere. Many genera are extremophiles, meaning they thrive in extreme environments such as extremely high temperatures, high salinity, or pH extremes. Bacterial and archaeal cells are characterized by the absence of a nucleus and membrane-bound organelles.