Since genetically engineered (GE) crops were introduced in 1996, their use in the United States has grown rapidly, accounting for 80-90 percent of soybean, corn, and cotton acreage in 2009. To date, crops with traits that provide resistance to some herbicides and to specific insect pests have benefited adopting farmers by reducing crop losses to insect damage, by increasing flexibility in time management, and by facilitating the use of more environmentally friendly pesticides and tillage practices. However, excessive reliance on a single technology combined with a lack of diverse farming practices could undermine the economic and environmental gains from these GE crops. Other challenges could hinder the application of the technology to a broader spectrum of crops and uses.
It has both improved and made worse animal agriculture. New technology allows us to easily extract milk from cows, but at the cost of the cow itself. We are able to get milk but the cow is forced to produce milk and calves for our enjoyment of milk.
b. Aldosterone promotes sodium reabsorption in the kidneys.
Explanation:
Once it is produced by the adrenal gland it stimulates the mineralocorticoid receptors on the distal tubule and collecting duct of the kidney's nephrons. This causes sodium reabsorption in the kidneys indirectly affecting water retention.
The answer is true. The Species-Area Curve lets us to forecast how many species will keep on if the forest is reduced in size by a stated amount. The y-axis specifies how many species can be preserved in an exact area while the x-axis specifies the area of habitat.
