In alveoli, tiny air sacs in the lungs, oxygen is absorbed and then transported through the body. The interaction in this example indicates the interdependence of which system? A skeletal and muscular
B circulatory and digestive
C muscular and respiratory
D respiratory and circulatory

How water is moving through the ecosystem ?

Refer to the family pedigree shown here. in generation i, one parent is affected by the gene mutation and one parent isn't. in generation ii, all three children are affected by the gene mutation. what can you conclude about this gene mutation? a. all children born in future generations will be affected by this disorder. b. this gene mutation is a dominant disorder. c. this gene mutation is a recessive disorder. d. the generation i mother is a carrier of this gene mutation.

The big bang theory suggest that the universe is about - 300 million years old - 4.6 billion years old - 30 billion years old - 13 billion years old