The most important factor influencing the amount of electromagnetic radiation from the sun that reaches any planet is a Ithe type of atmosphere on the planet
b. the surface gravitation of the planet
C. the planet's distance from the sun
d. the rotational period of the planet

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

In the diagram below, the northern hemisphere would be in what season at position a a.fall b. winter c.summer d.spring

The cluster of developing cells from conception until birth is called an