The wind and pollen dropping from trees
The endoplasmic reticulum transports proteins around the cell, so when the ribosome makes the protein, the endoplasmic reticulum transports it to the Golgi body for further processing.
Several factors affect the rate at which enzymatic reactions proceed - temperature, pH, enzyme concentration, substrate concentration, and the presence of any inhibitors or activators.
It is called IMPLANTATION. the zygote is embedded into the uterus lining. Starting from there, the zygote will soon develop into a embryo and soon a fetus under amniotic fluid and an umbilical cord to transfer food and waste in and out.
SC) principle of horizontal originality