Your answer is D lives in the same region as others closely related species. Because it wouldn't be C cause that's not isolation it would be B cause there not plants and its not A because it is reproductive but its not isolation.
Answer: Lymphatic system
Explanation:
Not respiratory and excretory for sure.
Not nervous because the diagram doesn't show spinal nerves clearly. So its lymphatic system.
:-)
B is the answer and I hopes this helps
What are the choices? But Carbohydrates are the main component of fruit and vegetables.