Answer:
When a molecule moves down its concentration gradient is it participating in passive transport; moving up the concentration gradient requires energy making it Answer:active transport
Photosynthesis is one of the main processes that is basically responsible for the function of all living things. Without it carbon would not be cycled, oxygen would not be made and plants would not be able to creat food for themselves and would have to rely on another source.
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Explanation:
The law of substitution is also known as the law of equi-marginal utility or the law of maximum satisfaction. ... According to this law, if a consumer is to use all the available resource in the consumption of a single commodity then marginal utility,derived from every additional unit will decrease successively.
Answer:
fern is the producer.
Explanation:
producers are mainly green plants.
