Answer:
The aspect of behavior to be attributed to biology, are those our "UNCONSCIOUS" behaviors
The aspect of behaviour to be attributed to environment, are those our"CONSCIOUS" behavior.
Explanation: conscious behaviors are those behavior that we are awear of, and had a thought about it, before acting. Like anger, laughter, loving, decision making, and many more. This is a type of behavior that involves ones emotion and thoughts. This is mostly influenced by the environment.
For instance, when someone got sad or happy, it is always a reaction to an action that has acted on the person. When someone wants feels love for a person or thing, it is always reaction to the action the person or thing has showed.
Unconscious behaviour is the tote of behavior that those not involve any thought or emotion, the body just react to it in a particular way, that has been saved in the brain, like walking, sleeping, Reflex actions, and many more. This type of behavior those not need a thought or any emotional attachment to decide how it will be done, and where it will be done.
For instance, when we walk down the staircase, we don't have to think about how to walk or stretch our legs. When we place our hands on a hot iron, we fastly remove our hands without thinking if this will harm us. When we fall asleep, most times we don't even know or consider that we are in a meeting or inside a public bus, because we may have resisted the body it's normal time of sleep and the body needs it then. All this are biological factors that makes one behavior to be that way, because they are not emotionally attached and it doesn't require deep thought before acting.