Structure & Function
The body system that breaks down food into units that can be absorbed by the body
What is the DIGESTIVE SYSTEM?
makes food in PLANT CELLS -photosynthesis
What is CHLOROPLASTS?
reproduction involving the union or fusion of a male and a female gamete (2 parents)
What is SEXUAL REPRODUCTION?
Anything that takes up space and has mass
What is MATTER?
all factors that must remain the same in an experiment
What is CONSTANTS or CONTROLLED VARIABLES?
What are the smallest working units of all living things
What is CELLS?
power-house of the cell; produces all energy; cell respiration occurs here
What is MITOCHONDRIA?
The physical appearance or visible traits of an organism
What is PHENOTYPES?
Parts of an atom - Proton, Neutron, and Electron. What are the charges?
Proton = positive (+)
Neutron = neutral
Election = negative (-)
a well-tested concept that explains a wide range of observations
What is a SCIENTIFIC THEORY?
part of a eukaryotic cell that directs cell activity and contains genetic information stored in DNA.
What is the chemical process of PHOTOSYNTHESIS
Requires only one parent for the reproduction of offspring
What is ASEXUAL REPRODUCTION?
when a substance is changed into a different substance.
What is a CHEMICAL CHANGE?
Factor that is CHANGED by the scientist - manipulated variable
What is INDEPENDENT VARIABLE?
An individual plant, animal, fungi or single celled life form
What is an ORGANISM?
the organic circulation of carbon from the atmosphere into organisms and back again
Which scientists realized that adaptations increase the fitness of an organism
What is CHARLES DARWIN?
Does not change what the substance is. Caused by a change in shape, change in size, change in phase
What is a PHYSICAL CHANGE?
A factor that responds to the change - your results in an experiment/the data
What is DEPENDENT VARIABLE?
Organelle found only in: plant cells. Surrounds cell membrane
What is CELL WALL?
coal, oil, gas (created from a dead organism pushed underground)
What is FOSSSIL FUEL?
An offspring grows from the body of a parent, splits off, and lives independently.
What is BUDDING?
A chemical reaction that releases energy in the form of heat is called
Can be answered by doing an experiment. Represents a cause and effect relationship between variables.
What is TESTABLE QUESTION?