<u>Answer:</u>
When there is excessive nitrogen then it will have negative effect on aquatic ecosystem because of the over nutrition in aquatic system.
<u>Explanation:</u>
- Nitrogen will drain away from soil and make the concentration of nitrogen high in water.
- This harms aquatic system by excessive growth of algae which will over shows the water surface and eventually block sunlight which is require for another aquatic organism.
- When those algae die, during decomposition, oxygen is consumed which will deficit oxygen for other organisms.
Answer:Astronomers use a number of telescopes sensitive to different parts of the electromagnetic radiations to study objects in space
Explanation:
Answer:
<u>Aerosols they leave freely through the ozone</u>
Answer:
In the ecosystem, the tides of the water rise in each figure. In figure 4, there is an increase in land animals present, and a lower amount of aquatic animals present. In the first figure, there are no birds, however there are multiple in the rest of the figures, this is possibly due to migration in the winter or that the ecosystem has drawn birds near. The types of plants change throughout each figure which is most likely to new adaptations such as more water available. The tides most likely rose because of more precipitation.
Explanation:
I hope this helped.
Answer:
a) recovered from pituitary glands removed from human cadavers.
Explanation:
- The human growth hormone is responsible for growth along with cellular proliferation and reproduction in humans.
- The hormone is secreted by the pituitary gland.
- Therefore, before the recombinant DNA techniques were available the hormone was isolated from the pituitary glands fo human cadavers.
- However, this method was not continued because the extract hormone became a source of infection for diseases such as the Creutzfeldt-Jakob disease.
- Therefore, alternatives were looked for and with the advent, in recombinant DNA techniques, the scientist was able to successfully make the recombinant human growth hormone as well.