The major ingredient of scientific argument is scientific evidence and known science concepts. Thus through scientific idea, expectations and observations a scientific argument is given birth to. Scientific argument are usually arrived at by mean of scientific methods.
The answer is single opening. The gastrovascular cavity varies from the alimentary canal in that only the gastrovascular cavity has only a single opening. In addition, an alimentary canal has two openings and food moves over it unidirectional. The gastrovascular cavity is a construction establish in primitive animal phyla. It is accountable in cooperation with the digestion of food and the transportation of nutrients all over the body.
Mainly by nitrogen-fixing bacteria in the soil and oceans
A nucleus controls the movement of the cell, if that helps.
Answer:
<em>Option</em><em> </em><em>A)</em><em> </em><em>humidity</em><em> and</em><em> </em><em>temperature</em>
