Acrystal's structure is categorized based on question 1 options:
the number of elements it contains
the number of atoms it has
the arrangement of the atoms within
the shape of the mineral sample

The pharynx is the structure in the body that serves as a pathway of both air and food. how does the body make sure that food does not get into the lungs? the salivary glands secrete enzymes that pull food out of the air pathway. the small intestine pushes the air out of the digestive system. the pancreas breaks down food in the air pathway. the epiglottis closes the air pathway so that food will not enter it.

In order to study genetic mutations, scientists must study genetic material. which statement describes the genetic material scientists are most likely studying? a) they study alleles that contain chromosomes, which are rna.b) they study alleles that contain genes, which are chromosomes.c) they study chromosomes that contain genes, which are dna segments.

When animals eat, the food is stored and digested in the stomach or a similar structure. but when a unicellular organism like this paramecium eats, the food is stored in which organelle