Answer:
it allows only some materials to pass through and leave the cell.
Answer:
A) Calcitonin injection
Explanation:
Parafollicular cells or C-cells of the thyroid gland produce a hormone which is involved in the regulation of calcium levels in the blood. This hormone is Calcitonin. It works in an antagonistic manner with the Parathyroid hormone (PTH). Calcitonin decreases the calcium level in the blood by increasing absorption of calcium ions in bones. In osteoporosis, when the patient is given the injection of hormone calcitonin, it produces and increase in bone mass because it negatively affects the rate of absorption of bone by the osteoclasts.
Answer: know your common climate effects and how to limit them, i would recommend drawing a map of the area, identify spots of patchy dirt and figure out why, keep tabs on everything you see, pay attention to where everything grows best and everything grows less, try to compare and contrast why, pay attention to snow fall, make sure you’re char king for aspects, topography, exposure, shade, drainage and droughts as well.
Explanation: just did it
