Answer:
D. tip his head back farther to open his airway.
Explanation:
Tilting the head farther back moves the tongue away from the back of the throat, allowing air to enter the lungs.
The most important factor which determines whether the living things can survive in a body of water s its salinity. The salinity level of the water is the factor at play in deciding which of the living organisms live inside the water. The salinity of the organisms has to be similar to the salinity level of the water in order for them to survive, otherwise, they will be dehydrated as a result of osmosis.
Hence, the answer is 'salinity'.
Explanation:
because the pressure exerted by artery is more than that of vein due to its narrow lumen and thick walls...causing it difficult to clot.
Answer:
<em>PROS: </em>
<em>1. They are cheaper</em>
<em>2. They contain more nutrients</em>
<em>3. Grown with fewer pesticides</em>
<em>4. Resistant to insects</em>
<em>5. Tolerance to heat, cold, and drought</em>
<em>CONS:</em>
<em>1. May cause allergic reactions</em>
<em>2. Will make you resistant to antibodies</em>
<em>3. Cross pollination</em>
<em>4. GMO's can create a super bug, one which is able to go past the crop's resistance on insects. Making a devastating blow on crops that have no insect resistance</em>
<em>5. They have been linked to cancer</em>
All living cells arise from pre existing cells.
