A. Son organismos unicelulares de vida libre, por lo general poseen dos flagelos para
trasladarse, cloroplastos para realizar
fotosintesis un pigmento fotoreceptor
llamado estigma​

that is true   : ) hope this you

he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?

"it built up in the atmosphere"

i think thats it, idk, i tried looking for this exact q& a for grad. and idk if i got this question right or sorry if im wrong