excretory system: removes waste from blood.
respiratory system: obtains oxygen so the energy in the nutrients can be extracted.
circulatory system: transports nutrients from small intestine to the othet tissues.
nervous system: regulates and controls digestive functioning.
( Am not completly sure, but i think this is the answer)
Answer:
13. is Option J) all of the above
and 14 I'm not completely sure but I think its option D.
Ithe answer is b. and the temperature brought fires to the crops. One movie example of this could be the intersteller.
Hot packs or a med used for reducing swelling
They make up everything needed to create DNA, although im not very sure, i think the answer your looking for is DNA.