scientific method
variable that is changed or manipulated by experimenter
independent variable
movement of molecules from areas of high concentration to low concentration with no energy needed
diffusion
what is mitosis
division of body cells
body's ability to maintain balance
homeostasis
Who was the scientists who discovered the differences in Galapagos finches?
Charles Darwin
what is a dependent variable
variable that is is measured
what is osmosis
diffusion of water
what cell structure does protein synthesis occur in
ribsomes
what is the function of the endocrine system
produce hormones
In a dessert climate, which color mouse fur would survive more?
tan, brown, beige.
how is the control group different from the experimental group
the control group is kept at normal conditions and does not receive the experimental treatment
what organelle is involved in the movement of molecules in and out of a cell?
cell membrane
In which organelle can you find chromosomes with genes?
the nucleus
what body system's function is gas exchange
respiratory
The term for a body part or behavior that helps an organism survive in it's environment...
Adaptation
What is one way to increase the validity of an experiment
increase the number of trials or increase the sample size
how is active transport and diffusion different
Active Transport is movement from low to high and does require energy (ATP)
in which cell organelle does cell respiration occur?
mitochondria
what are 2 examples of homeostasis
regulating body temperature, heart rate during exercise, insulin regulate body temperature
The term for the specific roles or jobs that organisms have in their habitat...
Niche
Provide an example of a hypothesis that would test how light impacts the height of a plant
If the amount of sun is increased then the plant will grow taller
what characteristic of a molecule determines if it can pass though the cell membrane
size
what are the reactants (goes in) and waste products comes out) of cell respiration
oxygen, glucose = water, carbon dioxide, & ATP
Explain two body systems that work together to maintain homeostasis
circulatory and respiratory
digestive and respiratory
Since all birds and reptiles share traits such as laying eggs and having a backbone (vertebrate)... This means that they must share a...
C__________ A__________
...at some point in history.
Common Ancestor