Answer:
characterized by presence or absence of antigens
the blood types are A, B, O, AB
Explanation:
There are two antigens and two antibodies that are mostly responsible for the ABO types. The specific combination of these four components determines an individual's type in most cases. Erythrocytes and serum were related to the presence of antigens on these erythrocytes and antibodies in the serum. these antigens are A and B, and depending upon which antigen the erythrocytes express, blood either belonged to blood group A or blood group B. A third blood group contained erythrocytes that reacted as if they lacked the properties of A and B, and this group was later called "O" blood group. The fourth blood group AB, was added to the ABO blood group system. These erythrocytes expressed both A and B antigens.
Blood group Antigen present on RBC Antibodies in serum Genotype(s)
A antigen A anti-B AA or AO
B antigen B anti-A BB or BO
AB both A and B antigen none AB
O none anti-A and anti-B OO
I like Pringles, so I chose those.
Calories: 2349
Protein: 20.16
Carbs: 235.08
Fat: 154.48
I sure hope Deb exercises a lot!
<u>Unusually cold winter</u> is a density-independent factor for a flock of Canada geese on a large lake.
Density independent factors mean that those factors/variables affect the density of the population. However, the density of the population, on the other hand, does NOT affect the variable.
Explanation:
The other factors are density-dependent except unusually cold winter. The cold is not affected by the population density of the Canadian geese. However, an increase in cold causes the population density to decrease because some individuals in the population will be unable to cope with the cold. Only individuals with traits favorable in the bitter cold survive.
Learn More:
For more on dependent and independent variables check out;
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Answer: Plant vegetation so that their roots hold the soil firmly.
Build walls around the farm area.
Add natural fertilizers to the soil.
Soil erosion is a process of removal of top layer of soil which get sediment at some other place due to the affect of agents like wind and water. The superficial upper layers of soil are rich source of nutrients and organic matter and active region for germination of seeds and plant growth. Soil erosion removes these superficial layers making soil less fertile or not fertile and less useful for plant growth.
Plants growing in a vegetation have roots which can hold the soil and will prevent soil erosion from wind and water or any other agent. Building of walls around the farm area will prevent flood water to get inside the farm area and hence, prevents soil erosion by water. Addition of natural fertilizers to the soil adds up nutrients to the soil which facilitate plant growth and plant roots hold the soil therefore, prevents soil erosion.
Answer:
Effect of independent variable is studied on the dependent variable or subject of the experiment.
Explanation:
The independent variables are very important in an experiment. Basically the affect of an independent variable is studied on the subject or dependent variable.
Thus, it can be said that independent variable will produce the effect on the dependent variable.
Here in this case the different types of disinfectants are the independent variable and their effect will be observed on the bacteria (subject or dependent variable)
