Water-soluble nutrients stored in blood are routed directly from the small intestine through the portal vein to the liver before any other organ. The portal vein or hepatic portal vein is a blood vessel which carries blood from the GI tract, to the liver. The blood contains nutrients and toxins extracted from digested contents. The portal vein is not a true vein, since it conducts blood to capillary beds in the liver and not directly to the heart. It is the main component of the hepatic portal system.
Answer:
Independent: Light intensity
Dependent: Rate of photosynthesis
Explanation:
The independent variable is the variable that changes, to determine if it has an effect on something.
The dependent variable is the variable that's measured.
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CO2 traps heat in the atmosphere of the earth which leads to global warming because of the green house effect
The four postulates of the natural selection include.
1. individuals possessing particular traits are have higher likelihood of surviving and reproducing.
2. different individuals in a population have different traits
3.reproductive and survival rate vary with individuals in a given population.
4. some trait differences are inheritable.
Dark reactions<span> make use of these organic energy molecules (ATP and NADPH).</span>
