Scientific Investigation
The idea that experiments should be repeated many times to get accurate results.
Reliability, Repeating the experiments as many times as you can!
A characteristic that helps an organism survive and reproduce in its environment.
Adaptation
Imprints or remains of once living organisms are called ....
Fossils
Mutation
Many different species living together in an ecosystem. ex: Large trees, birds, squirls, deer, rabbits, fox.
What is the Independent Variable in the following hypothesis? If I water my grass, it will be greener.
The water.
If a new trait DOES NOT help an organism survive, what may happen to it?
It dies off, becomes extinct.
A similar bone or organ within many different species of life is a ____________________.
homologous structure
How many chromosomes do you have in your DNA?
46 total
Name an event that would leave to PRIMARY SUCCESSION.
What is the Dependent Variable in the following hypothesis? If I brush my teeth twice a day, I will have less cavities.
The number of cavities.
True or False: An adaptation will be the least likely process that will lead to the evolution of a species.
False, Adaptation is most likely to lead to the evolution of a species.
Predict which moth would increase in population, Dark moth on a dark tree or the lighter colored moth?
Dark Moth
What does the term Inherited Trait mean?
A characteristic passed from parent to offspring.
Example: Height, eye color, and blood type are inherited traits.
Plants produce what waste product through photosynthesis?
Oxygen.
What is the factor the scientist changes on purpose in an experiment.
The Independent Variable.
During which succession should we see pioneer species?
Primary Succession.
A giraffe has a long neck in order to better reach leaves to eat. This is an example of _____.
Adaptation
Give me an example of an inherited trait.
Hair color, eye color, skin color.
When 2 species share the same food source, what happens to the species that isn't very good as obtaining it?
They won't live as long.
The factor being measured; the outcome that happens because of the independent variable.
Dependent Variable.
What 3 things will a species be in competition for in their environment?
Food, water, shelter. BONUS: a mate.
Humans, birds, whales, and lizards all have similar arm bones. What is the reason for this?
They have a common ancestor
2 upper case letters indicates you have what type of trait?
Dominate
What is the MAIN SOURCE of energy for the Earth's ecosystems?
THE SUN.