An ecologist finds a unique substance growing on a rock. It has a large storage tank, a wall around the exterior, chloroplasts and a nucleus. Explain to the ecologist what type of cell this is (plant/animal and prokaryotic or eukaryotic) and how you know.

A eukaryotic cell. More specifically, a green plant.

Explanation:

Firstly, the presence of a nucleus tells us this is a eukaryotic cell, not a prokaryotic cell. Prokaryotic cells do not possess a nucleus and their genetic material is in the cytoplasm. Eukaryotic cells store their DNA in a nucleus.

The presence of a large storage tank (likely a central vacuole), a cell wall, and chloroplasts are all plant-cell specific features. The chloroplast is where photosynthesis takes place, so we know it must be a green plant.

type 2 happens when excess consumption of high-sugar foods flood the blood supply with glucose and reduce the production and effectiveness of insulin. if a person has prediabetes, they can reduce the risk of full diabetes through regular exercise and a balanced, low-sugar diet.

cells use diffusion to get substances in and out of themselves. that diffusion will occur across the cell membrane or the outer covering of the cell. because we are talking about the surface of the cell, surface area and volume are  important factors here. as a cell increases in size, its surface area and volume increase as well.  we call that the surface area to volume ratio (sa: vol).  but the catch is that  volume increases at a greater rate than surface  area. in other words, as a cell gets bigger, the sa: vol gets smaller. so a really small cell like bacteria is mostly cell membrane (surface) with very little contents (volume). a really big cell like an egg, is mostly insides with a super thin membrane. so what ends up happening is that the cell cannot efficiently diffuse all of the stuff it needs in/out to survive. therefore cell size is limited to about 100mm. so how do we make organisms bigger than 100mm? cells divide! by dividing and becoming multicellular, organisms are able to grow!   check out the diagrams i attached to see the effect of sa: vol. i hope this ! good luck!