Answer:
hercios
Explanation:
Según el Sistema Internacional (SI), la frecuencia se mide en hercios (Hz), en honor a Heinrich Rudolf Hertz. Un hercio es la frecuencia de un suceso o fenómeno repetido por segundo. Así, un fenómeno con una frecuencia de dos hercios se repite dos veces por segundo.
hormons. hormones are released from glands and they all belong to the endocrine system.
Answer:
1.a unicellular organism has only 1 cell while a multicellular organism has 1 or more cell
2.a unicellular organism is a prokaryotic cell or bacteria, while a multicellular organism is mainly a eukaryote
Explanation:
Buccinators are muscles in the cheek that help smiling.
Laris oculi are muscles helping close eyelids.
Orbicularis oris is a muscle that helps manipulate the mouth:
the correct answer is D. all the above are muscles that help facial expression.
