It’s between b and d. I would go with b based on the information below.
The four primary functions of carbohydrates in the body are to provide energy, store energy, build macromolecules, and spare protein and fat for other uses. Simple carbohydrates are quick energy sources, but they do not usually supply any other nutrients or fiber. One of the most important functions of carbohydrates is to form a structure called the glycocalyx. This is a coat around the cell.
An endoskeleton of calcified cartilage
Answer: T
Explanation:Carbon dioxide is added to the atmosphere naturally when organisms respire or decompose (decay), carbonate rocks are weathered, forest fires occur, and volcanoes erupt. Carbon dioxide is also added to the atmosphere through human activities, such as the burning of fossil fuels and forests and the production of cement.
They break down the organic matter that has died so that the nutrients stored with in it can be reused.
Answer:
A) They reproduce asexually through a form of cell division called binary fission.
Explanation:
It's similar to mitosis in eukaryotic cells