Unit 2 Flashcards
What is the hierarchy of the earth?
A. Biosphere B. Ecosystem 1. biotic 2. abiotic C. Community D. Population 1. Species E. Organism
What is the hierarchy of an organism?
A.Organ System B. Organs C. Tissues D. Cells E. Organelles F. Molecules G. Atoms
What are the 4 types of tissues?
Connective, Epithelial, Muscle, Nervous
What are the 2 types of cells and what makes them different?
Prokaryotic- no nucleus, very simple, no double-membranes
Eukaryotic- nucleus, double membranes, more complex
What are the 3 domains?
Bacteria, Archaea, Eukaryota
What are the 2 groups of bacteria?
cyanobacteria (makes own food) heterotrphic bacteria (doesn't make own food)
What are the 2 groups of archaea?
halophiles (able to survive in salty places)
thermophiles (able to withstand high temps)
What organisms are classified as Eukaryotes?
Plants, animals, fungi, protists(chromists, aveolates, rhodophytes, flagellates, and basal protists)
What 2 scientists disproved spontaneous generation?
Francesco Redi and Louis Pasteur
What is the cell theory?
- All life is made of cells
2. All cells come from other cells
Who is known as the father of microscopy?
Anton van Leuwenhoek
What is the theory of endosymbiosis?
Eukaryotic cells formed from a symbiosis among several different prokaryotic organisms
What organelles were formed by endosymbiosis ?
Mitochondria and chloroplasts
How to viruses infect their host?
By attaching to the host and injecting its DNA
How do viruses reproduce?
By using the host’s raw materials. Viruses can’t reproduce on their own
Are viruses living?
They have some components of living things, but not all, so they are not considered living by most scientists