<span>During digestion, the blood picks up nutrients absorbed through the gi tract and transports them to the <u>different organ systems of the body.</u> The oxygen and nutrient-rich blood can be transported throughout the body by the different blood vessels that surround it. Without blood circulating through the body, it would be hard for the body to maintain its homeostasis and survive for long.</span>
Answer:
The value that depends on another.
Explanation:
The dependent variable is the variable being tested and measured in an experiment, and is 'dependent' on the independent variable. An example of a dependent variable is depression symptoms, which depends on the independent variable (type of therapy).
Correct answer choice is:
B) Carry out essential life functions.
Explanation:
They are essential to the lives of people, plants, animals, and all other organisms. Nutrients help cut down food to give organisms potential. The most essential nutrients they require are carbon, hydrogen, and oxygen. Other nutrients required by plants are nitrogen, phosphorous, potassium, calcium, magnesium, and sulfur.
Answer:
The correct answer is D. proliferation and differentiation.
Explanation:
Primary immune response occurs due to the first exposure of an antigen to the immune system. The primary immune response is generally delayed by many days because it takes time for B and T cells to become cloned and to proliferate and differentiate.
Then after several days of proliferation and differentiation of activated T and B cells, T cells become effector T cells and B cell becomes plasma cells which then eliminates the antigen. Memory B and T cells are also produced during this process which helps in generating a quick immune response during the second and subsequent exposure of that antigen.
So the correct answer is D. proliferation and differentiation.
