Answer:
d. keystone species
Explanation:
is one that plays a pivotal role in ecosystems, e.g., species of palm or fig trees that maintain all the vertebrate frugivores in a Peruvian rainforest for 3 months of the year when other trees are not in fruit
voila. good answer no?
We should focus on getting people to move their butts. Steven Blair says the sedentary life style of people needs to be eradicated to treat low fitness and excess weight.
When the light bounces off an object and travels to your eyes those light rays travel parallel to each other. When they pass through a magnifying glass, the Convex lens finds the parallel rays so that they converge and create a virtual image on your eyes retinas. The virtual image on your retinas appear larger than the real object due to principles of Geometry. Despite the magnifying glass, your eyes trace the light rays back in parallel lines to the virtual image. Since the virtual image is farther from your eyes than the object is, the object appears bigger.
Nitrogen wastes I think :)
