Answer: They both deliver blood to vital organs, therefore the correct answer is A.
Answer:
The answeris A.
Explanation:
Enzymes are important for digestive system as they break down large insoluble molecules into small molecules molecules.
Answer:
question 2 is newtons first law
Explanation:
<span>Igneous or metamorphic. Depending on the energy of the river, they could be anything from large, rounded cobbles or pebbles (as per classification of the Udden-Wentworth Scale), or sand and gravel as identified under other systems. Or angular clasts that haven't been rounded by moving along the bed. Note that the Udden-Wentworth is usually applied to sedimentary features, but can also be used in classifying the *size* of any rock. </span>