Campbell Biology: Chapter 1: Themes of Biology Flashcards
What are 7 properties of life?
response to environment
growth and development
What are the 7 themes of life?
interaction between organisms and with environment
necessity of energy transfer/transformation
form fits function
cell is the basic unit of life
life continues through DNA
feedback mechanisms regulate biological systems
What is genomics? What three developments make this possible?
genomics is the study of/analysis of the genome of an organism.
technological tools such as DNA sequencing
What are positive and negative feedback?
positive feedback- end product speeds up its own production
negative feedback- end product accumulation slows down production
What are the 8 taxonomic categories of life (in order from smallest to largest)?
species, genus, family, order, class, phylum, kingdom, domain
What are the three domains?
bacteria, archaea and eukarya
What are the kingdoms?
animalia, plantae, protists and fungi- eukarya
bacteria, archaea- prokarya
Discern between plantae, fungi, animals and protists.
Plants produce their own food by photosynthesis.
Animals ingest food.
Fungi absorb dissolved nutrients from their surroundings(often from decomposition).
Protists are single celled.
What are the levels of the biological hierarchy in order from smallest to largest?
molecules(atom -->subatomic particles), organelles, cell, tissue, organ, organ systems, organisms, populations, communities, ecosystems, biosphere