Answer:
I'm gonna give you more than 5 so you can choose:
seal, human, whale, bird, shark, grass, coconut tree, and crab.
Explanation:
Biotic factors are living or once-living organisms in the ecosystem. These are obtained from the biosphere and are capable of reproduction. Examples of biotic factors are animals, birds, plants, fungi, and other similar organisms.
The discovery of the Rhesus factor affected society by improving the success rate of blood transfusions. Prior to the Rhesus system being implemented, blood was typed according to the ABO system alone. This meant a significant number of blood transfusions failed due to immunogenic reactions to the rhesus factor leading to agglutination of blood. It also helped prenatal care as people became aware of the possibility of the mother and child being Rhesus incompatible. This condition could be combated by an injection of antibodies.
So if you didn't know that the arteries is the biggest and carries the blood from you heart to your vessels
Answer:
c. some drug-resistant bacteria were present at the start of treatment, and natural selection increased their frequency
Explanation: