No system is closed off by it surroundings.
Olafactory bulbs because it has to do with nerve signals and neurons. Brain because it is the center of the nervous system and the closest to the nose in terms of the nervous system.
The term used to describe an organic cofactor is that this common chemistry allow cells to use a small set of metabolic intermediates to carry chemical groups between different reactions. These group-transfer intermediates are the loosenly-bound organic cofactors, often called coenzymes.
Answer:
The reason why the final answer may be surprising to a lot of people is that
Onion is not a fruit, it is a vegetable while banana is a fruit; likewise, lemons and they are both yellow fruits.
Because they are both yellow fruits, one may have the thought that a lemon and a banana are more closely related.
It may also be confusing to lots of people because some plants that produce vegetables are more closely related to plants that produce fruits and it goes vise versa.
1. brown and red in color to help blend into their dry habitat
2. a weasel-like body that helps them maneuver around bushes, trees, and predetors
1. they typically live alone and hunt mainly during the night time. this helps them keep a low profile in large plains
2. they made a wide variety of sounds, some for fun, some for mating, some to luring prey
