Book : Ch. 1 Flashcards
What is biology ?
The science of the study of life
What is biophilia?
The love of living things
What are Cyanobacteria ?
Bacteria capable of photosynthesis
What is life?
Made up of at least 1 cell.
Way of capturing and using energy and raw materials
When did life begin?
3.8 billion years ago with chemical origin of the first living cell
Prokaryotic cells contain :
Plasma membrane Cytoplasm DNA Nucleoid Ribosomes
Eukaryotic cells contain
Plasma membrane Cytoplasm DNA Nucleus Ribosomes
Cyanobacteria means what
Capable of photosynthesis
What is nature?
Everything in the universe except for what humans have manufactured
What are atoms?
Fundamental building blocks of all substances
What are molecules?
Consisting of two or more atoms
What is a cell?
Smallest unit of life
What is an organism ?
An individual consisting of one of more cells
What is a population?
Individuals of the same species in the same area
What is a community?
Populations of all species in same area
What is an ecosystem?
A community and it’s environment
What is a biosphere?
All regions of the earth where organisms live
What is an emergent property?
A characteristic of a system that does not appear in any of its component parts
What is an animal?
Multicellular consumer, life stages , mobile
What is an archaeon ?
Single celled, no nucleus, closely related to eukaryotes
What is a bacterium?
Single celled, no nucleus
What is biodiversity?
Variation among organisms
What is a prokaryote?
Cell with no nucleus
What is a fungus?
Single celled/multicelled, digests outside body, absorbs released nutrients, decomposer
What is a nucleus?
A sac that encloses DNA