Well for one, we used coal for electricity, water for steam engines when they were much in use, natural fossil feuls for our gasoline and oil, and we use earths oxygen/nitrogen gasses to breathe and sadly we are polluting it at a fast rate
<span>Flatworms possess excretory organs known as nephridia. Specifically as annelids, flatworms possess a variant known as metanephridia. This variant is defined by a cilia-lined funnel that opens into a coelom that empties through a anus to the outside of the organism.</span>
False
The primary function of mRNA is to act as an intermediary between the genetic information in DNA and the amino acid sequence of proteins.
Answer:
The answer because of its exposure to sunlight, photosynthetic organisms are at the bottom of the food chain in the lighted zone. Hope it helps!
Organisms<span> regulate complex systems through chemical interactions through feedback mechanisms. The feedback mechanism can respond to perturbation either as positive feedback (the same direction) or a negative feedback (opposite direction). The contractions in childbirth is an example of positive feedback. The hormone oxytocin is released in the body when contraction begins to further aid the contractions. An example of negative feedback is the regulation of blood glucose level. The continuous rise of blood glucose level may lead to diabetes.</span>
