True, Methane is a greenhouse gas
<span>Fossil record, genetics, and examples of local adaptations all support the theory of evolution by natural selection.</span>
The size of food web is limited by the number of animals included in the area.
-Pepetreefrogthe2nd
The answer is: A. collecting data
During this process , researchers would use their observational skills and record every notable occurrence that happen to the variables.
The focus on this process is simply to add all relevant data without making any analyzation. That process come later on after the researchers started to change the variables in order to see whether it would create a correlation.
Answer:
O Red Blood cells
Explanation:
The Universal Donor. O- blood type is the universal red blood cell donor because their red blood cells can be transfused into any patient, regardless of blood type. O- red cells must be used for trauma situations and other emergencies when the patient’s blood type is not known. O- red cells are also frequently used for babies and sickle cell anemia patients.
Brainliest?