Adaptations
What is an adaptation?
Something that helps with the reproduction or survival of a species.
What are the two main types of reproduction?
Sexual and asexual
What is inheritance?
The passing of genetic material from parent to offspring.
What is natural selection?
The adaptations of an organism are controlled by the environment.
What is the difference between an atom and a molecule?
Atom is one element.
The molecule is a combination of multiple different atoms
How do adaptations help an organism survive in their environment?
By allowing them to be more suited for the environment where they can survive and reproduce.
Describe an advantage of sexual reproduction.
Genetic diversity
What is the role of DNA?
To carry the genetic information code
Name the scientist who proposed the theory of natural selection. What did he study to develop this theory?
Charles Darwin - finches
Name 3 body systems that are responsible for the removal of waste from the body.
Excretory, respiratory, digestive, circulatory, integumentary
What might happen to a species that does not adapt to their environment?
They could become extinct.
How does asexual reproduction affect the genetic variation in a population?
Asexual does not allow for any genetic variation.
How can mutations affect inheritance and the traits of an organism?
They change the traits and create new ones.
DOUBLE JEOPARDY!!!
What are the possible benefits of artificial selection?
Creating more resistant crops and livestock, creating domesticated animals.
Give 4 signs of a chemical reaction.
Bubbles, color change, temperature change, precipitate, light
DOUBLE JEOPARDY!!
Explain the difference between structural adaptation and behavior adaptation.
behavioral describes a behavior such as peacocks dancing; structural describes the body such as hollow bones in birds
How does genetic variation occur in sexual reproduction?
Through the unique combinations of genes from both parents and genetic mutations.
How do traits get passed from parent to offspring?
Reproduction
Describe an example of natural selection.
Moth color; polar bears vs. brown bears.
Give an example of Newton's first law of motion.
Balanced and unbalanced forces
Explain how adaptations can lead to evolution over time.
Organisms change to be better suited thus evolving.
What is one disadvantage of sexual reproduction and asexual reproduction?
Sexual: takes longer, must find a mate
Asexual: no genetic variation
Why would one trait be more prevalent than the other?
Some traits are dominant which means they are stronger.
Compare and contrast natural selection and artificial selection in terms of their outcomes for species.
One allows for organisms to be better adapted to their environment, and the other allows organisms to best suit human needs.
What is acceleration?
Any change in speed or direction.