Trees can be made again . Water is a natural resource fuel is too . Wind
Varieties of plants in which self-fertilization produces offspring that are identical to the parents are referred to as true-breeding. In this process the parents will pass down specific phenotypic trait of their offspring. True bred organisms will have pure genotype (genetic make up of an organism) and will therefore produce certain phenotype.
<span>The lungs both take in oxygen molecules for cells of the body to use and eliminate carbon dioxide molecules from the body.</span>
The answer is most likely the second choice. All answer choices could be possible, but in light of the others the second choice is far too specific, and there is no information in the prompt to even indicate that as a plausible answer choice.