Sexual reproduction can be divided into two different types based on which of the following?

a. the type of cellular division
b. body symmetry
c. the location of fertilization
d. the presence of male and female animals

Which is not a characteristic of bacteria? a. they are unicellular. b. they are prokaryotic. c. they are the smallest form of life on earth. d. they are multicellular.

This is collection of data made by comparing objects in standard units. in science, the units are metric.

Ascientist is designing an investigation to study the impact of invasive bird populations on local, native bird populations at backyard bird feeders. what population is most likely to be a control group for the investigation? amount of food number of bird feeders invasive bird populations local backyard birdfeeders without food