Birds have hollow bones due to the fact thay need to be as light as possible for their wings to generate enough lift for them to fly
Things such as coal and oil are limited because they are only found in some places
Most mutations have no effect on organisms. Organisms all have large amounts of genetic code, most of which has no effect. As a result, mutation of this code is rarely meaningful.
<span>c. are formed from claudins and occludins.</span>
Answer:
We determined that if phosphorus is provided at the required level of 0.33%, the optimal ratio of calcium to phosphorus is 1.39:1 or 1.25:1 to maximise daily gain and gain-to-feed, respectively. To optimise bone ash, which is important for breeding sows, the ratio is 1.66:1,”
Explanation:
