Hope this helps
A benefit of crossing over is that it maintains genetic diversity within a population, allowing for millions of different genetic combinations to be passed from parents to offspring. Genetic variability is very important to the long-term survival of a species
Develop into<span> gills or other body parts as the embryo </span>develops<span>. </span>backbone<span> ... the embryonic structure in chordates that is </span>usually<span> replaced by a </span>backbone<span>. bony fish.</span>
The type of behaviour is called agonistic. It is the term for any social behaviour related to fighting.
Earth's orbit and climate change
Urethra as Nephrons form Kidney and Urethra isn't a part of Kidney.