what is the current percentage difference between humanity’s ecological foot print and the earths ecological capacity

Which best describes how the common cold spreads in the human body? a bacteria burst out of normal cells killing them b viruses replicate inside respiratory cells c bacteria inject dna into normal cells d viruses insert dna into bacteria

Akrabby blind whale has married pearl who has normal vision. oneof their two sons is also colorblind. what arr the genotypes of the parents?

What is the difference between an igneous, sedimentary and metamorphic rock