Landscape of fear
A network of nerve cells in the body. This system receives input from the environment.
What is the nervous system?
A trait that appears when at least one dominant allele is present.
What is a dominant trait?
A random change to an organism's DNA
What is a mutation?
A record of the history of life on Earth based on preserved remains of ancient organisms.
What is the Fossil Record?
An organism in its earliest stages of development (before it is born or hatched).
What is an embryo?
Something that is done because of a stimulus.
What is a response?
An organism that helps plants reproduce.
What is a pollinator?
The process of increasing certain traits in a population over time, based on the environment.
What is adaptation?
A method of dating fossils that uses the ages of known (index) fossils.
What is relative dating?
The genetic instructions for life.
What is DNA?
Ways that organisms react to their environment, for example, running away from a predator or sneaking up on prey.
What is animal behavior?
Different forms of a gene.
What are alleles?
The variety of different traits in a population.
What is genetic variation?
A method of dating fossils that uses measurements of Carbon-14 decay.
What is radiometric dating?
A type of reproduction requiring two parents, the offspring are genetically different from their parents and siblings.
The amount of time it takes for an organism to react to something in the environment.
What is reaction time?
A type of reproduction that requires only one parent. The offspring are genetically identical to the parent.
What is asexual reproduction?
The process of bacteria surviving and reproducing after exposure to antibiotics.
What is antibiotic resistance?
A similar body part shared across species that is used as evidence of a common ancestor.
What is a homologous structure?
The basic unit of life.
What are cells?
A sensory cell that senses light
What is a photoreceptor?
A trait that makes it more likely that an organism will survive.
What is an adaptive (or beneficial) trait?
The 3 possible effects of mutations on organisms.
What are beneficial, harmful, and neutral?
A species from which two or more species have descended.
What is a common ancestor?
Mrs. Agan's favorite color.
What is blue?