The answer is : D. Certain vitamins might not be synthesized and foods might not break down as well. Antibiotics are taken during sickness to destroy the bacteria that caused an infection. More than often,they also kill the "good" bacteria in the large intestine, causing problems like diarrhea and upset stomach.
The answer is d. carry on metabolism.
Metabolism includes all chemical reactions involved in maintaining order within cells and organs. The purpose of metabolism is a conversion of food or fuel to building blocks for macromolecules and to energy for cellular processes. It is involved in the elimination of waste, too. Regulation of metabolism is important for normal functioning of cells and organs.
<span>The carry chemical messages throughout the body.</span>
Answer:
The early Earth was very different from our Earth today.
Explanation:
Earth's first atmosphere had lots of water vapor but had almost no oxygen. Later, frequent volcanic eruptions put several different gases into the air (Figure 12.13). These gases created a new type of atmosphere for Earth.
