Steven lives on a farm in Iowa, which is known for its fertile soil and abundant crop production. His family grows corn and raises hogs, so their livelihood is tied to the ecosystem. Read each of the phrases that describe the economic value of ecosystems. Drag each phrase into the correct box.
crops, wetlands, recreational activities, raw materials, and shade trees
Direct:
Indirect:

where is the option.let me know

what in the weirdo : o

the dna molecules have a negative charge because of the phosphate groups in their sugar-phosphate backbone, so they start moving through the matrix of the gel towards the positive pole. power is turned on and dna fragments migrate through gel (towards the positive electrode).

explanation:

propane is burned to provide the heat in many cooking grills. the chemical reaction for this process is shown in the equation below.

c3h8 + 5o2 ? 3 co2 + 4h2o + energy

what are the products in this chemical reaction?

3co2 + 4h2o + energy