<span>In the past, human populations were controlled by </span>Disease and Famine
Answer:
A biogeochemical cycle is one of several natural cycles, in which conserved matter moves through the biotic and abiotic parts of an ecosystem. ... Each of these elements is circulated through the biotic components, which are the living parts of an ecosystem, and the abiotic components, which are the non-living parts.
C. Because they contain water ammonia, and methane
Answer:
yes
Explanation:
thornless roses are often a result of a natural mutation that results in a chimera
