The correct answer is letter A.
Rainforest deforestation is contributing to a decline in global biodiversity. Irresponsible logging causes the major destruction of many habitats. As a result, many living organisms that are thriving within these forests are displaced or are killed because they no longer have any place where they can thrive and live in peace with their respective species. Deforestation accounts for most of the major catastrophic natural events that we are experiencing at present.
Answer:
D. Molecules called pumps function to control active transport.
Explanation:
Active transport is one of the two types of transport (the other being passive transport). It is the type of transport in which substances move against their concentration gradient i.e. from a lower concentration to a higher concentration. Hence, due to this, energy input in form of ATP is required by the cell.
However, the process of active transport makes use of certain molecules called PUMPS to control it. The pumps moves ions/molecules against their concentration gradient. An example is the sodium-pottasium pump which moves sodium ions from a region of low conc. to a region of high conc.
Largest energy found in the lowermost portion of the trophic level near "Producers" 'cause as it passes through the higher trophic levels, it get decreased by 10% at each step, according to Lindmann's 10% law!!
Hope this helps!!
