It would be D because it it based off of knowledge and you are proposing a hypothesis before conducting an experiment to predict what will happen
The DNA is packaged... it starts by being wrapped around special protein molecules (histones). This forms a nucleosome.
In biochemistry, enzymes are protein catalysts of the body that speeds up certain specific metabolic reactions in the body. They word in the concept of lock-and-key theory or induced fitting. These two theories are all based on the shape and size of the enzyme's active site that could accommodate the substrate. So, the main function of the enzyme is dependent on its shape. Therefore, when an enzyme undergoes denaturation, its orientation and shape changes. For example, a beta pleated sheet may change to an alpha helix orientation. As a consequence, the number and capacity of active sites changes. Hence, the enzyme becomes nonfunctional.
Answer:
D it is taken in from the air
Explanation:
Carbon dioxide is in the air and plants use it to make food.
Plants produce<span> flowers to make </span>seeds<span>.</span>
