Causes:
1. the increase in population and growth of the human race
2. the need for housing and industrial advancements
effects:
1. loss of habitat for wildlife
2 loss of trees for oxygen
Answer:
the element oxygen , represented by the symbol o, is classified as a pure substance
Examples of active transport include the uptake of glucose in the intestines in humans and the uptake of mineral ions into root hair cells of plants.
<span>Viruses are regarded as being on the borderline of living and non-living because it exhibits characteristics of both living and non-living organisms. Inside a host, the virus can act as a living organism using the host's cellular system while outside the host, the virus crystallizes that makes them incapable of conducting metabolic activities. </span>
