Ch 1-1 Flashcards
contains all ecosystems
Biosphere
Ecosystem
interaction b/w living things + environment (made of community)
diff species + organisms (made of popu)
Community
Population
same organisms living in same area
individual organism
Individuals
Endemic
species only found in one population (vulnerable to changes)
Several types of tissue that carry out a function
Organ
group of cells of same tyoe that perform specific function
Tissue
Cell
Smallest unit of life
Organelle
Discrete unit within cells
Molecule
two or more than two atoms of same/ diff elements chemically bonded (smallest)
Does prokaryotic have organelles
No
reducing complex system into smaller components
Reductionism
Combined interactions to make properties of a system
Systems biology
Emergent properties
Emerge due to interaction bw diff components (increases w/ complexity)
Unit of inheritance (hereditary info)
DNA, deoxyribonucleic acid
Code for proteins (info needed to produce species)
Genes
Process our cells use to convert info in DNA into a functional unit
Gene expression
• serve as messenger markers, structural components, enzymes
Protein
Protein encoding genes
control production of proteins through transcription + translation
Interaction bw organisms
Symbiosis
3 ways human interactions alter environments
1) climate change
2) habitat destruction
3) species endangerment
4 kingdoms of eukarya
Plantae, fungi, protist, animalia
3 domains of life
Bacteria, archaea, eukarya
concept that all current life on Earth is descended from common ancestors
Evolution
Unity
Sharing of traits b/w organisms from single ancestor
Uniqueness inherited by living organisms
Diversity
population w/ individuals who can interbreed + produce viable and fertile offspring
• Indiv of one species CANNOT interbreed w/ indiv of another species to produce offspring
Species
Indiv w favourable traits selected by their environment
Natural selection
wrote “On the Origin of Species by Means of Natural Selection (1859)
Charles darwin
Symbiotic
Interactions bw 2 or more diff organisms