An atom is the smallest unit of life
The answer is TRUE. Research indicates that marijuana smoking exposes the subjected to 75% more benzanthracene than tobacco smoke. Additionally, marijuana smoke has 50% more benzopyrene, 3-5 times higher aromatic amines and nitric oxide than tobacco smoke. Some research also indicate that marijuana smoke has 20 times more ammonia than cigarette smoke.
The answer is B) The rapid extinction of top-level consumers in the Gulf food webs, such as sharks, dolphins, and sea turtles.
The Deepwater Horizon oil spill in the Gulf of Mexico is the largest in the history of the oil industry. The oil spill created a large layer of floating oil patch over the gulf waters. This layer of oil blocked the exchange of gases like oxygen in the water. The top-level consumers like the dolphins, sharks and sea turtles that need to surface to breath fresh air got coated with the oil and perished.
Answer:
First, Petra sprays the discolored area with
Fluorescein
, which returns a glowing blue color. However, she knows that this chemical might also turn blue with other substances that contain iron. Subsequently, she uses
Phenolphthalein
, which turns pink, indicating the presence of hemoglobin.
Explanation:
This situation is called an incomplete dominance. A great example of this is when a plant with red flowers is paired with a plant with white flowers and the seeds give plants with pink flowers
