True. diphallia is a rare condition where a male has two functioning phallic organs, and it can help (if you know what i mean) sorry this was only example i could think of
If you use more than one independent variable at a time, and will observe a change, you will not know which variable contributed to a changed result.
Ponds and Lake Ponds and Lakes form when water collects in<span> hollows and low-lying areas of land. </span>
Answer:
The phylum platyhelminthes includes the organism like flatworms, earth worm and many other species. They play a major role in the marine, terrestrial and freshwater ecosystem. It contains a variety of nutrient sources.
Explanation:
They are of great importance from the times when there were no other organism.
