Once the blastocyst has implanted in the uterus, it is called an . after eight more weeks of development, it is called a .

Last week i was assigned a thematic. we have groups of three but the people i was assigned with haven't been in school for days. i would appreciate if anyone can me with my thematic . i highlighted most of the important steps and i circled my thematic topic. in desperate need : ( its due on february 19

What are the characteristics of living things

What must be true for natural selection to heppen