<h2>True </h2>
Explanation:
Blood types are determined by the presence or absence of certain antigens – substances that can trigger an immune response if they are foreign to the body
Some antigens can trigger a patient's immune system to attack the transfused blood, safe blood transfusions depend on careful blood typing and cross-matching
There are four major blood groups determined by the presence or absence of two antigens: A and B on the surface of red blood cells
In addition to the A and B antigens, there is a protein called the Rh factor, which can be either present or absent creating the 8 most common blood types which are A+,A-.B+,B-O+,O-,AB+,AB-
Blood type is inherited and it is determined by the blood type of both father and mother
Blood type helps in DNA fingerprinting and forensic science and plays an important role in determining blood relations or to identify the suspect
Coral reefs are generally found in clear, tropical oceans. Coral reefs form in waters from the surface to about 150 feet (45 meters) deep because they need sunlight to survive. The three types of reefs include fringing reefs, barrier reefs, and atolls.
Primary consumers are those that are herbivorous - they only eat producers. Primary consumers are the link between the base of an ecosystem's chain food - where simple substances are transformed into organic compounds by photosynthesis or chemosynthesis - and the upper layers - where energy is obtained from, mostly, other animals.
If primary consumers were not found in an ecosystem, all other layers of the chain food on that ecosystem would be nonexistent. The ecosystem would only be made by producers.
Answer:
freshwater is affected the most
Explanation:
I would say a (Sorry if i am wrong)
