The correct answer is A. Scientists reintroducing crested toads into the wild.
Explanation
Species Survival Plan is a conservation program promoted by conservationists and zoologists that specializes in those animals that are near extinct, endangered, or threatened. This program mainly aims to breed these species in captivity to ensure their future preservation and reintroduction to nature. According to the above, the effect that could be expected from the implementation of the Species Survival Plan in Puerto Rico with the crested toads would be the reintroduction of this species into the wild after being bred in captivity.
The answer is C. nitrogen.
Plants are main producers in ecosystems so, primary productivity of ecosystems depends on them. Carbon is necessary for plants, but it is widely present in plants. On the other hand, calcium and sodium are not as essential. However, nitrogen is important for plants because it is necessary to make proteins. Proteins take part in many different processes such as photosynthesis (this is actually primary productivity). But, nitrogen is not available to plants, they cannot absorb it simply from the air but rely on some symbiotic bacteria which are able to.
Answer:
The magnetic field is strongest at point C.
Explanation:
In a magnetic field, the center is known to be strongest region of the magnetic field while between the two poles outside the bar magnet are the weakest region.
Lines of the magnetic field are seen to be the densest even at the center of the magnetic field while between the poles outside the bar magnet, it is least dense.
A magnetic field is known to be a field which shows the magnetic impact and influence on electric charges, magnetic materials and electric currents.
Answer:
i could be wrong but i think its
the rapid division of bacteria in the lymph nodes.
the rapid division of white blood cells in the lymph nodes.