Answer:
The right answer to this question is water vascular system.
Explanation:
Through this system it's possible to identify it easily an echinoderm, that's why we can use it as a method of checking the information. But be careful, because for example, the radial symmetry, is not present in all the kinds of animals said on the question, shrimps are good examples, shrimps are part of the crustaceans. In this way, as you first see the organism, you are going to guess what it is by its appearance, and then you're going to analyse it properly after. Once you check it has a water vascular system, it's most probably to be an echinoderm.
Answer:
A- Is a gas when a liquid is "SuperHeated"
B- is a liquid when a gas cools down to a certain temp
C- Is a solid when liquid is Cooled down Below freezing
Answer:
A testable hypothesis is valuable, even if evidence shows that it is false
Explanation:
A hypothesis sets a base on which the experiment is conducted by determining the design and protocol for which the scientists will take in the experiment. A hypothesis, therefore, should be developed based on good research prior to beginning to conduct the experiment. Usually a good hypothesis is one of no change called a 'null hypothesis'. Based on an analysis of data from the experiment, a hypothesis could either be rejected or accepted. If the null hypothesis is rejected then the alternative - which is usually the flip side of the null hypothesis- is adopted as true.
The answer is Sodium Fluoride
<span>During inspiration, after leaving the larynx, air enters the trachea.</span>
