Answer:
Organ systems are organs that work together to perform a specific bodily function, so your answer is D
Explanation:
<span>There are two structures that would be found at a passive continental margin. These structures are continental shelves and continental slopes.</span>
SELECTIVE BREEDING INVOLVES CHOOSING PARENTS WITH PATICULAR CHARACTERISTICS TO BREED TOGETHER AND PRODUCE OFFSPRING WITH MORE DESIRABLE CHARACTERS . ... CROSS BREEDING INVOLVES TWO DIFFERENT BREEDS FROM THE SAME SPECIES TO CREATE A NEW BREED
<h2> hope it helps.</h2><h2>stay safe healthy and happy.</h2>
Your answer is going to be A. Excretory.
