Cual es la importancia de la materia en diferentes estados de agregacion en nuestra vida

How does pregnancy begin? a) a placenta forms in the uterus b) a sperm reaches an egg in the fallopian tubec) the blastocyst differentiates into two cell types d) contractions begin in the uterine wallapex

Select the correct answer. a chestnut-colored horse mates with a white-colored horse to produce a brown and white spotted offspring. what is the type of inheritance pattern?

Explain the source of radioactivity in uranium in earth’s crust by which it produces nuclear radiation