When were criminals first used to create a system to catch other criminals?
a.) before the 1800s
b.) during the 1800s
c.) 1900-1988
d.) 1990 to present

*will mark brainliest to first correct answer* photosynthesis led to increasing levels during the later proterozoic eon? a. oxygen b. water c. carbon dioxide d. none of the above

Match each description to the appropriate biome. tropical savanna desert tropical rain forest taiga tundra has sparse vegetation and very cold temperatures located near the equator and contains trees that form dense canopy layers is very hot and dry, and has plants that need little water has cold winters, heavy snowfall and is dominated by conifers has warm temperatures and is dominated by grasses

One gene can influence trait(s). one trait can be determined by gene(s).