Unit 1
what is an observation?
information gathered by using the senses
what is a unicellular organism?
an organism that consists of a single cell
what is a pedigree?
a chart that illustrates the inheritance of a specific trait through the generations
what is extinction?
the occurrence where a species completely dies off
what are physical adaptations?
physical traits that enhance the survival and reproduction of an organism
what is a graph?
a visual representation of data
what is DNA?
a molecule that carries genetic information in cells
what is heredity?
the passing of traits from parent to offspring
who first published the theory of evolution?
Charles Darwin
what is mutualism?
a symbiotic relationship in which both organisms benefit
what is matter?
anything that has mass and takes up space
what is a cell cycle?
recurring cycle of the growth and division of cells
what are genes?
molecules that contain information and are passed from the parent to the offspring
what is a mutation?
a change in the DNA of an organism
what is homeostasis?
when organisms keep a stable environment within their cells and bodies