When scientists examine the fossil record, they find the remains of different species in layers of rock of different ages.
what do they deduce from this?
a. the earth experienced many floods in the distant past
b. fossils sink at different rates
c. life on earth has remained constant and unchanging
d. life on earth has changed over time

Asquare kilometer of forest has 200 deer. what is the term that is used to describe this number?

Which type of bacterial reproduction is depicted in the diagram?

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils