The answer is Arthropoda.
Arthropoda is the great phylum that include insects, arachnids, myriapods, and crustaceans. Among these animals, insects can be found flying in the backyard, and arachnids spin a web. Crustaceans, such as crabs, lobsters, shrimp, are part of human cuisine.
2,7. 4,6
Explanation:
2 C2H6. +. 7O2. ==. 4. CO2. +. 6 H2O
Note. In such questions balance C first then H and finally O
It will be easier