Help me it’s just science questions

The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above

Dna. we have heard that we are a product of our dna. but where is it? how do we "get" our dna? it is passed to us, from our parents, but in what form? several vocabulary words associated with inheritance are used interchangeably and sometimes, incorrectly. let's see if you can clear this up for someone just learning about inheritance and cell structure.

Why do oceanic plates tend to subduction when colliding with a continental plate