Answer:
Insulin is an hormone that keeps blood glucose levels from getting too low or too high. After digestion, insulin is released from the pancreas into your bloodstream. What systems are involved in maintaining blood sugar levels?
Circulatory and Endocrine
Explanation:
Circulatory and Endocrine are the ones involved in maintaining blood sugar levels where the endocrine secrets the hormone while the circulatory ensure the delivery to the targeted organ or part of the system
membrane proteins are required for all membrane transport into and out of cells
<span>The term that contains both communities and ecosystems is known as a biome. A biome is a huge area on Earth, similar to a very large ecosystem, but even larger than it, that includes plants and animals in that area, but also geology, climate, relief, etc. The correct answer is BIOME.</span>
C is the obvious answer because your body is full of simple machines, such as levers, pivots, and many more.