From Cells to Organisms
The basic unit of structure and function in living things.
What is a cell?
The body system that breaks down food and absorbs the nutrients and energy from food.
What is the digestive system?
The genetic code found in living organisms.
What is DNA?
A random change in a gene that can get passed to offspring.
What is a mutation?
Living components of an ecosystem such as plants and animals.
What are biotic factors?
The organelles that use oxygen to break down food for energy.
What are mitochondria?
This body system responds to changes in your environment.
What is the nervous system?
The type of reproduction where one parent produces an exact copy.
What is asexual reproduction?
The cause of most of the extinctions that have occurred in the past 500 years.
What are human activities?
A model used by ecologists to demonstrate the feeding relationships in an ecosystem.
What is a food web?
Process by which plants use the energy from sunlight to convert carbon dioxide and water into food.
What is photosynthesis?
Structures in the body composed of one or more tissues that have a specific function.
What is an organ?
A variant (or version) of a gene.
What is an allele?
An inherited trait that helps an organism survive.
What is an adaptation?
The amount of energy passed from producers to consumers.
What is 10%?
Two structures found in plant cells, but not in animal cells.
What are chloroplasts and cell wall?
The two body systems that work together to bring oxygen into the body and move it to every cell in your body.
What are the respiratory system and circulatory system?
The model used to show the likelihood of each outcome of a breeding experiment.
What is a Punnett square?
An event in which the last members of a species or group die because they are not well suited to their environment.
What is extinction?
Species that exist outside their normal range and have the ability to cause harm to the environment or people.
What is an introduced or invasive species?
A disease passed from one organism to another caused by a pathogen (such as a bacteria or virus).
What is an infectious disease?
A way that scientists study diseases and the medicines used to treat diseases.
What is a clinical trial?
When an organism has one dominant copy and one recessive copy of a gene.
What is heterozygous?
When humans select desirable traits and breed organisms in hopes of producing offspring with those traits.
What is artificial selection?
Mutualism, commensalism, and parasitism are types of this long term interaction between two organisms.
What is symbiosis?