Ben CAN invert the pyramid to show the flow of energy; it will then show which insects are eaten by which birds, instead of the other way around.
False, but it is also some what true.
It is true that one way to protect biodiversity is to set aside more wilderness land, but hikers and campers can visit such areas as long as they do not stay long. Scientists estimate that a wilderness area needs to be roughly at least 1,500 square miles in total, or it will be negatively impacted by affected by bad air, dirtly water, noise, and pollution from nearby human activities.
When dealing with the environment and ecosystems, it is important to establish a good balance between human activities and the conservation efforts. One good example of this is ecotourism. Some of the activities that fall under this catagory are hunting, fishing, off-road recreation, and even boating. Ecotourism is a billion-dollar industry, and without theses activities the funding to protect the wilderenss would be sparse if non-existant.
Answer: Option B) Antigens
Blood typing is based on the presence of proteins known as antigens on the outer surface of the red blood cell plasma membrane.
Explanation:
Blood groups A, B, AB, and O are determined based on the antigen-antibody reactions between donor and recipient bloods.
For instance,
- Blood type A has antigen A on its plasma membrane
- Blood type B has antigen B on its plasma membrane
- Blood type AB has both antigen A and antigen B on its plasma membrane
- while blood type O has neither antigen A nor B on its plasma membrane
So, antigens is the answer
The liver has both respiratory and digestive
