I believe that the answer to your question would be A. Heart Begins.
Answer:
Your digestive system absorbs water and nutrients from the food you eat. Your circulatory system carries oxygen, water, and nutrients to cells throughout your body. Wastes from the cells are eliminated by your respiratory system, your excretory system, and your skin.
Explanation:
Answer:
MRCORRECT has answered the question
Explanation:
Do to the fact that Earth's axis is tilted 23.5 degrees to the plane of the "ecliptic", which is the plane of the Earth's orbit around the Sun. Each planet's orbital plane is a little different from Earth's, and each planet has a different axial tilt. The fact that we are talking about 5 dgrees we are talking about Jupiter which there would be little to no change
For example, pH can have an effect of the state of ionization of acidic or basic amino acids. Acidic amino acids have carboxyl functional groups in their side chains. Basic amino acids have amine functional groups in their side chains. If the state of ionization of amino acids in a protein is altered then the ionic bonds that help to determine the 3-D shape of the protein can be altered. This can lead to altered protein recognition or an enzyme might become inactive.
Changes in pH may not only affect the shape of an enzyme but it may also change the shape or charge properties of the substrate so that either the substrate connot bind to the active site or it cannot undergo catalysis.
In geneal enzyme have a pH optimum. However the optimum is not the same for each enzyme.
