Chapter 1 - Principles Of Life Flashcards
An organism
Is either a prokaryote or eukaryote
A cell
Is the fundamental unit of life
Oceans were a good environment for early organisms because they
Partially shielded organisms from damage due to ultraviolet light
Oxygen Gas in earths early atmosphere
Allowed organisms to move from the sea to land
Photosynthesis indirectly permitted the evolution of
Cellular respiration
In terms of increasing complexity, the order of parts of a multicellular organism is
Molecules, cells, tissues, organs, organ systems
A community differs from a population in that a community
Consists of populations of different species
Genomes are
The sum of genetic information in a cell
Nearly all of the cells in a multicellular organism
Contain the same genome
Which item affects the outcomes of natural selection
Organisms must display variation, a trait must be able to be passed on to future generations, a trait must increase survival, I trade must increase reproduction
Plants show remarkable Diversity even though they were derived from a common ancestor. Which factor contributed to this diversity
Sexual selection
Which statement represents a scientific point of view
Comparing the genomes of organisms allows us to create phylogenetic trees
Scientific explanations for a natural phenomenon
Do not referred to religious or spiritual explanations
Earth is approximately how many years old
4 to 5,000,000,000
Biology’s big ideas
Energy transfer, information, evolution, complexity
