9. Which biome is home to permafrost?
desert
savanna
tundra
chaparral

What molecule does hemoglobin decay into over time

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons

Natural resources are any materials that humans obtain from the earth to meet our wants and needs.