Trees aren't made biologically the same way as birds. For this same reasons this is why humans don't "fly". Yes, we have developed technologies to create an atmosphere forgoing the fact that we don't have wings or 'webbed' limbs to help us fight the force of gravity while in the air. This is why trees cannot fly, because they are born that way biologically for a purpose, to convert carbon dioxide to oxygen.<span />
The crossing of chromosomes will create meiosis
The structure contains cells is blood<span />
It takes to much energy and there's a lot of dirt
SYNAPSIS: also called syndesis
the fusion of chromosome pairs at the start of meiosis.
synapsis takes place during prophase I of meiosis.
Hope this helps have a good day.....