A | B |
Theory that species change over time | evolution |
Process through which evolution occurs | natural selection |
Favorable traits that increase an organism's chance of survival | adaptations |
The study of living things | biology |
The study of how things evolved | phylogeny |
The study of the evolutionary history of organisms | phylogeny |
Genetic information | DNA |
The "blue print" of life | DNA |
Short pieces of DNA containing a chemical code for a certain trait | genes |
The acquisition of traits from the parents | inheritance |
DNA from different organisms is combined | sexual reproduction |
DNA comes from only 1 parent | asexual reproduction |
A fertilized egg | zygote |
Process by which a zygote becomes a mature individual | development |
Term for something made of only 1 cell | unicellular |
Term for something made of more than 1 cell | multicellular |
Why do some organisms look different at different stages of their life ( like a caterpillar & butterfly) | only certain genes are "turned on" or expressed at that time |
Study of the form or structure of an organism | morphology |
The study of the internal structure of an organism | anatomy |
Why is it important to study structure? | Because it's related to the function |
What are the 7 themes of biology? | SEESRED- Science & Society, Energy Relationships, Ecology, Structure & Function, Reproduction, Evolution, Development |
Where does the energy for organisms ultimately come from? | the sun |
Term for organisms that can make their own food energy | autotroph |
Term for organisms that must get their food energy from a source other than themselves | heterotroph |
Study of the interactions of organisms with each other & their environment | ecology |
The study of what's right & wrong & our moral choices | ethics |
The application of ethics to biological concerns | bioethics |
The basic unit of structure & function in living things | cells |
Anything that causes a change in behavior | stimulus |
A reaction to a stimulus | response |
A complex set of responses | behavior |
2 main reasons that organisms need energy | growth & maintenance |
2 ways that growth occurs | cell division & cell enlargement |
Growth as a result of new cells being formed | cell division |
Growth as a result in an increase in a cell's size | cell enlargement |
7 characteristics of life | CORERAG- have Cells, Organized ( cell, tissues etc), Respond, Energy use, Reproduce, Adapt, Grow |
What does DNA stand for? | deoxyribonucleic acid |
Any living thing | organism |
When a gene is active, scientists say it is: | expressed |
In biology, structure is almost related to: | structure |
How does energy flow from the sun to autotrophs & then to heterotrophs? | autotrophs use sun's energy to make food, heterotrophs eat autotrophs for energy |
This shows the relationship an a species to an ancestral species | phylogeny |
In photosynthesis, plants capture the energy of the: | sun |
The highest level of organization within an organism is: | the organ system |
The most basic level of organization with an organism: | the cell |
How long ago do scientists believe life began on earth? | 3.5 billion |
What was the 1st organism composed of? | one cell |
How many species or organisms are estimated to live on earth? | 40 million |
What is the unifying theme in biology? | evolution |
Theory that those organisms with better traits survive long than those without: | natural selection |
All organisms come from pre-existing organism by what process? | reproduction |
Who's work established the importance of the peanut & sweet potato in the South? | George Washington Carver |
Making new forms of life by placeing genes from one organism into another | genetic engineering |
A viral disruption of the immune system | AIDS |
What is the difference between a response & a beharvior? | A response is a single reaction to a stimulus, and behavior is a complex set of repsonses |