Unit 1 Flashcards
Remember Unit 1 main points (41 cards)
What is biology?
The Study of Life
What is a biologist work?
To solve issues that have scientifically impaled our society.
What are the Seven Characteristics of Life?
Organization and Presence of one or more cells Response to Stimulus Homeostasis Metabolism Growth and Development Reproduction Change Through Time
What are the two types of cellular bodies?
Unicellar
Multicellar
What are the levels of organization? (big to small)
organ, tissues, cells, organelles, biologicle molecles
What are organelles?
Tiny structures that carry out functions necessary for the cell to stay alive.
What are biological molecules?
The chemical compounds that provide physical structure that bring about movement.
What is Homeostasis?
Mechanisms to maintain stable internal conditions.
What are the two types of reproduction?
sexual, asexual
What is sexual gene wise?
Combined genes
What is asexual gene wise?
same genes
Is evolution a change in a specific animal?
No, it is throughout a species.
How many species are on this planet?
1.5 million
What are the three domains of life?
Bacteria, Archaea, Eukarya
Which domain contains: Protists, Plants, Fungi, or Animals?
Eukarya
What are the six animal kingdoms?
Animalia, Plantae, Fungi, Protista, Archaea, Bacteria
What is Ecology?
The study of organisms interacting with each other and with the environment.
What is an Ecosystem?
Communities of living species and their physical environment.
What is the natural selection theory?
As animals reproduce, the ones with the weaker genes will die out and not have their genes passes on while the ones with the strongest genes with pass their genes on more
What is the adaption theory?
Needed traits for environment are developed through evolution.
Scientific method
An organized approach to learn how the natural world works
Observation
Is the act of perceiving a natural occurrence that causes someone to pose a question
Hypothesis
A proposed explanation for the way a particular aspect of the natural world functions
Prediction
a statement that forecasts what would happen in a test situation if the hypothesis were true