NQ - Lesson 1 - Classification Flashcards
What are marine bacteria commonly known as?
Cyanobacteria
Cyanobacteria are photosynthetic prokaryotes often found in marine environments.
What are marine protists typically characterized as?
Usually single-celled eukaryotes
Examples include diatoms.
What do marine vascular plants and macroalgae represent in marine biodiversity?
Types of marine flora
What distinguishes marine invertebrates from vertebrates?
Animals without backbones
Invertebrates are complex and multicellular.
Name the main taxa of marine vertebrates.
Fish, reptiles, birds, mammals
What are prokaryote cells lacking?
Cell nucleus and membrane-encased organelles
What do eukaryote cells possess?
Membrane-bound nucleus and organelles
What are the three large domains into which all living things can be divided?
Prokaryotes, Eukaryotes, Archaea
What is a significant historical marker of life produced by cyanobacteria?
Stromatolites
Stromatolites are formed by cyanobacteria binding to sand particles.
How old are fossil stromatolites?
3.5 billion years old
For how long were prokaryotes the only inhabitants of Earth?
Nearly 2.5 billion years
What did prokaryotes contribute to the Earth’s environment?
Oxygenated the sea and atmosphere
What is taxonomy?
A system for classifying living organisms
What is the classification of humans in taxonomy?
Domain Eukarya, Kingdom Animalia, Phylum Chordata, Class Mammalia, Order Primata, Family Hominidae, Genus Homo, Species Homo sapiens
What is the correct way to write genus and species names?
Genus with a capital letter, species in lowercase, all in italics
