Ummmm because the gravity pulls it down because of its weight
Cell - Egg Cell
Tissue - Muscle tissue
Organ - Lung
Organ system - Respiratory system
Organism - Dog
Without a nucleus, multicellular life forms, called eukaryotes, would not exist. According to the Molecular Expressions , the nucleus acts as the administrative center and information processor for the cell by storing its genetic material and coordinating its activities.
La relación entre el instinto y el aprendizaje es que el instinto es innato por lo cual no te das cuenta que lo hiciste, pero luego puedes internalizar ese instinto y hacerlo de manera voluntaria.
