2. How can diversity within an ecosystem be compromised? by regulating human activity within an ecosystem
by building structures on natural habitat areas
by helping to maintain habitats that have been disturbed
O by leaving the ecosystem alone to fend for itself

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.

Hemoglobin is a proton that carries oxygen around your body what is hemoglobin made from

The hardy-weinberg principle is that genetic frequencies in a population? will remain stable from generation to generation will always be changing will not be affected by environmental changes are always in a 3: 1 ratio