Answer:
Zinc
explanation:
The iron or steel object is coated in a thin layer of zinc. This stops oxygen and water reaching the metal underneath - but the zinc also acts as a sacrificial metal . Zinc is more reactive than iron, so it oxidises in preference to the iron object.
True.
We test hypotheses to first determine whether they are valid....In other words, whether they are accurate. Other people then test the same hypotheses to see if the results are reliable.
Valid = empirically supported; accurate.
Reliable = empirically supported over and over, even hundreds or thousands of times or more, by different people and through various methods.
Hypothesis = a suggested explanation that fits observable phenomena and possible correlations, based on data, induction, or deduction.
***Hypotheses MUST be falsifiable***
Falsifiable = capable of being shown to be false. If you can't falsify a hypothesis, it is NOT a valid hypothesis.
Theory = a thoroughly tested, non-falsified, and well-substantiated explanation that unifies proven (aka valid) and verified (aka reliable) factors. It has predictive power.
When we get the same results over time, by various experiments done by different people, we start to gain a lot of data and confidence in our results. Once the data are large enough and replicated enough, AND once the known experimental results have predictive power, we call it a theory...such as the theory of gravity or the theory of evolution by natural selection. If there's a mathematical relationship that is consistently true given the data, then we call it a law.
If the data are falsified, then we reject the hypothesis (show it is not true) and must move on to alternate hypotheses.
Hope this helps!
(Caps for emphasis, not screaming :) )
Gene for the same trait, for example yellow and green colors of peas
The correct answer is: large fats and fat-soluble vitamins
Lymph vessels called lacteals are responsible for the transport of large fats from the digestive tract. Those vessels are located at the beginning of the gastrointestinal tract, predominantly in the small intestine. Fats and fat-soluble vitamins are absorbed from the digestive system and then transported to the venous circulation. The lymph in the lacteals is called chyle.
Their organic matter becomes the foundation for a thin layer of soil
So the answer is soil