Lava that hardens on the surface is called an extrusion. The rock layers below an extrusion are always older than the extrusion. ... There, the magma cools and hardens into a mass of igneous rock called an intrusion. An intrusion is always younger than the rock layers around and beneath it.
Answer:
nucleus
Explanation:
Chromosomes are contained inside the cell's nucleus . These are long, thin, threadlike structures made from molecules of DNA that store genetic information. Chromosomes are found in the nucleus of body cells in pairs - one chromosome is inherited from the mother and one is inherited from the father.
Answer:
Corpus Luteum
Explanation:
Corpus luteum is a form of endocrine structure in female ovaries which involved in the production of high levels of progesterone in women. The progesterone is the one that regulate women's sex hormone, menstruation, and pregnancy. Progesterone often used as a medication to combat early symptoms of menopause.
49; Number of Electrons = Number of Protons = Atomic Number
