blood type B could have a genotype of either BB or BO.
Answer:
The spleen acts as a filter for blood as part of the immune system. It also helps fight against certain kinds of bacteria that cause pneumonia and meningitis.
Answer:
Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.
Explanation:
So, What Happens if Pollution Continues to Increase? ... Breathing air pollution hampers the functioning of lungs among healthy people resulting in respiratory inflammation and heart problems. Living in a polluted area and breathing toxic air increases the risk of cancer. Air pollution weakens the immune system
A is the right answer because it is.
Answer:
True.
Explanation:
in the early 1900s development of Salvarsan, an arsenic-based drug to treat syphilis.
