Answer:
Iodine, or more accurately iodide (I-), is avidly taken up from blood by thyroid epithelial cells, which have on their outer plasma membrane a sodium-iodide symporter or "iodine trap". Once inside the cell, iodide is transported into the lumen of the follicle along with thyroglobulin.
Explanation:
Gametes such as sperm and egg cells have haploid numbers of chromosomes until the moment of fertilization.
Answer:
Sunlight
Explanation:
On the surface of the earth, the main thing affecting ear is sunlight. While it does provide energy for living things, it drives our planet's weather and climate with temperature in the atmosphere and our oceans.
Hey Rosalyn!
A nucleus in a cell, holds DNA and DNA is essential. If there is no nucleus, there is no cell. If you need further clarification, comment on my answer :)
