C. because the oxidation of carbon compounds during cellular respiration produces energy, just like the burning of natural gas and organic compounds. I hope this helps!
They do not have a distinct head and thorax but a fused version of the two called a cephalothorax. That's one of the major differences between insects and crustaceans, both being subgroups of arthropods.
<span>Karotypes are best prepared using cells that have been arrested in metaphase. In metaphase or prometaphase, the chromosomes are most condensed.</span>
