The respiratory system brings oxygen into the lungs when you breathe. The digestive system breaks food down into nutrients such as glucose. Now the circulatory system enters the picture. ... The circulatory system also transports carbon dioxide waste from the cells to the lungs of the respiratory system
Red blood cells carry oxygen; white blood cells fight disease.
The study aims to understand the effect of the presence of corals on the types of organisms, not specially on the size, lifespan or mass. It would be important, then, to understand the different types of populations found in the two areas, because a population is a group of organisms from the same species. Therefore, understanding the populations would mean understanding what are the types of organisms in each area.
So the correct answer is A. by comparing the populations of organisms found in the samples from the two areas
Answer:
You can just use normal milk, or any variation of milk but it may not be the same