Yes smaller particles are used for energy.
<span>Answer: perception of color and odor are created by combinations of the receptor types
The perception of color and odor is determined by the combination of the receptor that catches the stimuli. That is why there is a wide variety of stimulus that can be perceived by such sense. if the perception coded by a specific receptor, the organ will need much more receptor that will make it less sensitive.</span>
Correct me if I'm wrong but I believe it is the Gravity (or Gravitational Pull) from the Sun.
<span>Long-spined cacti will survive longer and reproduce more often than short-spined cacti</span>. Because natural selection suggests that organisms with certain traits that give them better chance at survival or reproductive rate will be pass on to their offspring.
A Peptide bond is formed between two molecules
Example: when Carboxyl group and amino group form its releasing a water molecule. (H2O) well i hope this help i did my research c: