1. Cows get energy to move from the grass they eat. What is the energy transformation starting with the grass?

Mechanical to radiant and chemical energy
Mechanical to thermal and chemical energy
Chemical to mechanical and thermal energy
Chemical to thermal and radiant energy

Which of the following factors would not contribute to allopatric speciation? a) a population becomes geographically isolated from the parent population.b) the separated population is small, and genetic drift occurs.c) the isolated population is exposed to different selection pressures than the ancestral population.d) different mutations begin to distinguish the gene pools of the separated populations.e) gene flow between the two populations is extensive.