typically protista must not contain skull.
Answer:
The correct option is D. potentially interacting populations of different kinds of organisms.
Explanation:
In biology, a community can be described as the different populations of organisms that live in a certain habitat at a certain period of time.
For example, consider a habitat where there are a different type of trees, different types of plants, different types of animals, different types of decomposers. All these populations of different organisms will make a community. All the organisms in a community interact with one another in some way or another.
There are two significant factors that contribute to Americans having significantly higher rates of cardiovascular disease than Europe which can be attributed to diet and lifestyle. Although there is the presence of fat in the diet in Europe, the U.S. diet contains significant amounts of processed foods and fast food. The lifestyle in the U.S. also has more life stress. The counter example to this is the longer amount of vacation times in Europe and a more relaxed pace towards working, exemplified by the Spanish siesta or after lunch rest/nap.
Lysosomes looks like a little particles of circle layer covering, placed within the cell's sac.