Astudent mixed equal amounts of
water and oil together in a bottle and
found that the oil always floated
above the water. what can be said
about the density of oil versus water?
a. their densities are equal
b. oil has a greater density than water
c. water has a greater density than oil
d. oil and water must have equal masses and volumes

In eukaryotes, genetic information is passed to the next generation by processes that include mitosis or meiosis. which of the explanations identifies the correct process and supports the claim that heritable information is passed from one generation to another? a. mitosis, followed by cytokinesis, produces daughter cells that are genetically different from the parent cell, thus insuring variation within the population. b. during mitosis, dna replication occurs twice within the cell cycle to insure a full set of chromosomes within each of the daughter cells produced. c. in asexual reproduction, a single individual is the sole parent and passes copies of its genes to its offspring without the fusion of gametes. d. single-celled organisms can fuse their cells, reproducing asexually through mitosis to form new cells that are not identical to the parent cell.

Which of the following is the scientific term for an organism that makes its food from inorganic materials? a. autotroph b. heterotroph c. embryotroph

A. describe the scientific method, using pasteur's swan-necked flask experiment as an example.