Magnetic field . I hope I answered this right .
Independent and Dependent Variables
Answer: a)Preconception test
Explanation: Preconception test is the test that is prescribed to the potential parents or during pregnancy to ensure about the good health conditions. There are certain factor that is detected by the test such as any disease due to alleles , depression,high blood pressure,diabetes, fertility etc. This test is important for the potential parents and the newborn babies health. So, the correct answer is option(a).
depending on the animal that goes extinct( like if a lion went extinct water buffalo's populations would increase since they don't have loins killing them) hope this helps
Answer: The enzyme increases the effectiveness of reactant collisions thereby increasing the number of reactant molecules that reach activation energy.
A reaction occur if the substrates needed collide with each other. Enzyme is like a mold that can hold the substrate so that it will be easier to collide. The effect of enzyme could be seen in the activation energy needed to do the reaction because enzyme lower it very much. This will help speed up the reaction so it create product faster.
