Fuels derived from living things are known as
a. biomass fuels.
b. synthetic fuels.
c. hybrid fuels.
d. electricity

How did the research presented in the article affect scientists' understanding of the evolution of eukaryotes

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

Which organisms have pharyngeal arches that develop from all three germ layers and go through the same development stages as embryos? 1.bird 2.ladybug 3.starfish 4.snake