D. Calcium cycle
Biogeochemical cycles are not an important part of the Earth system.
Carbon
<span><span>A student believes that a beverage improves memory. Two groups of students will be given a beverage before they take a test in class. </span>
Which of these is the best way for the student to design the experiment?
<span><span>A.<span>One group should be given the beverage, the other group should be given water.
</span></span><span>B.<span>One group should be given beverage, the other group should be given diet version of the beverage.
</span></span><span>C.<span>One group should be given a math test, the other group should be given a science test.
</span></span><span>D.<span>One group should be given the beverage, the other group should be given beverage diluted in water.
</span></span></span></span>
Carbs; fruits and vegetables, maybe grains and lentils.
Human stem cells haven’t specialized in to create an organ. This means that they can be manipulated to create a variety of organs for organ transplant and therefore lowers the risk of rejection
