Traits are located on "Chromosomes" in the nucleus
Hope this helps!
As the heart beats, it pumps blood through a system of blood vessels, called the circulatory system. The vessels are elastic, muscular tubes that carry blood to every part of the body.
Blood is essential. In addition to carrying oxygen from the lungs and nutrients to your body's tissues, it also takes the body's waste, including carbon dioxide, away from the tissues. This is necessary to sustain life and promote the health of all the body's tissues.
You kinda need to put something there? We don’t know what the choices are so there’s really no way we’d know what choice is an example of federalism
The answer is A.
A fish is biotic because it is alive; the creek is abiotic because it is not alive.
Both the bird and the berry are biotic because they are both alive.