Intro to Bio Chap1 Flashcards
What are some shared characteristics by all living things?
Order, evolutionary adaptation, regulation, energy processing, growth and development, response to the environment, and reproductions
What are the levels of organization that all life contains?
The Biosphere, Ecosystems, Communities, Populations, Organisms, Organs, Tissues, Cells, Organelles, Molecules
What are the three Domains of life?
Bacteria, Archaea, and Eukarya
What is genetic variation and how does it affect life?
Genetic variation is the difference of inherited traits through a race or species. It affects life by allowing more genetically more adaptable individuals to survive and increase the frequency of traits that enhance survival.
What is regulation?
Homeostasis; the maintenance of constant internal environment through positive and negative feedback mechanisms.
Examples of homeostasis?
High blood glucose stimulates the pancreas to secrete insulin. Insulin circulates throughout the body. Insulin binds to body cells, causing them to take up glucose and liver cells to store glucose. Lowered blood glucose does not stimulate insulin secretion.
What is reproduction?
Organism reproduce by passing on genetic information in the form of DNA. DNA forms genes, which carry the instructions for cells to build proteins. Proteins allow our body to function properly.
Environmental responses (ex)
All living things respond to stimuli in their environment. Examples of this include a Venus fly trap closing in response to an insect landing in the open trap, or a plant growing in the direction of the sunlight (phototropism)
Growth and Development (ex)
All living things grow and develop over time. During development different genes are activated, resulting in the production of different proteins, the specialization of different cell types, and an increased complexity in an organism.
What is energy processing?
The flow of energy through ecosystems from the sun to produces and then to consumers. Energy flow is a one way process, while matter is cycled through living systems.
Scientific study of life (process)
Scientists study life through a flexible scientific process using controlled experiments, inductive and deductive reasoning to collect data and draw conclusions.
