Answer:
Metabolic wastes or excretements are substances left over from metabolic processes (such as cellular respiration) which cannot be used by the organism (they are surplus or toxic), and must therefore be excreted.
This is what i found out i hope this is a good enough answer!! :P
Answer:
to gauge the public's interest in a product
Explanation:
it seems like the best option :)
Answer:
If you are gifted in a certain area, it can be a burden because people expect so much from you and think that you are perfect and not supposed to mess up. It is a blessing, however, because then people can depend on you for help. And since you are good in that specific area, you are better at it than most people are.
One liter of spit each day
Answer:
A repeated-measures design
Explanation:
This is a research design that is used to measure the same variables repeatedly on the same sample or subject over a given time frame or over different time periods and/or under various conditions.