Unit 1
What is a theory?
a supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained
what is cellular respiration
Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules or nutrients into adenosine triphosphate, and then release waste products
what is dna?
a self-replicating material that is present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information.
what is natural selection?
the process whereby organisms better adapted to their environment tend to survive and produce more offspring. The theory of its action was first fully expounded by Charles Darwin and is now believed to be the main process that brings about evolution
What is physical adaptation
A physical adaptation is some type of structural modification made to a part of the body
what is a law (in science)
describes a phenomenon that the scientific community has found to be provably true
what is a nucleus
the central and most important part of an object, movement, or group, forming the basis for its activity and growth
what is a chromosome
A structure found inside the nucleus of a cell. A chromosome is made up of proteins and DNA organized into genes
what is artificial selection
what is a behavioral adaptation
A behavioral adaptation is something an animal does - how it acts - usually in response to some type of external stimulus.
What is observation
Observation is one of the major methods of science. An observation is defined as information gathered by using the senses.
who first discovered the cell
Robert Hooke
what is a Phylogenetic Tree
phylogenetic tree is a branching diagram or a tree showing the evolutionary relationships among various biological species or other entities based upon similarities and differences in their physical or genetic characteristics.
What is homeostasis