Many things we use every day come from natural chemical substances that are usually made of one or more elements. these are called a.) ores b.) atoms c.) minerals d.) metalloids

In this case, the statement that people who exercise for an hour may have lower cholesterol levels is .

How do living things obtain phosphorus

How do you know that the plant cells in these two images have different jobs, or functions? a. because all plant cells serve different functions b. because they are two different colors c. because their dna are different d. because their structures are different