unit 1
what is the difference between quantitive and qualitive observation?
quantitive describes a quantity related to what is being observed (involving counting or measurement) and qualitive describes a quality of what is being observed (descriptions)
what is an amoeba?
a single cell organism
The passing of traits from parent to offspring is called what?
heredity
how are mineral fossils formed?
A dead organism settles down on the bottom of the water. It gets covered by sediment. Soft tissues decompose. Hard tissues are preserved.
what is a behavior that that repeats at regular intervals?
behavioral cycle
what is an explanation for observable phenomena?
scientific theory
what are the functions of single cell organism?
break down food, remove waste, and reproduce
how many chromosomes do humans have?
46 chromosome or 23 pairs
sedimentary rock generally forms in layers within the earths system. what are the layers called?
strata
what are some examples of learned behavior?
for humans its math or riding a bike.
what is a predictable pattern in natural phenomena?
scientific law
what 2 german scientists first formed cell theory?
Matthias Schleiden and Theodor Schwann
what is variation of a gene?
an allele
what is relative dating
a method for determining the age of fossils and rocks
what is homeostasis?
a balanced and stable environment within cells and organisms