-Presence of jointed appendages and gills, lungs, jaws.
-Presence of a chitinous external skeleton or exoskeleton that change periodically.
-Body constituted by repetitive segments, phenomenon known as metamerism<span>.</span>
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<span> Sebastian Goicoechea.</span>
Hold on I can help you with this it's gonna take me maybe 10-20 min
Factors that influence the reaction rates of chemical reactions include the concentration of reactants, temperature, the physical state of reactants and their dispersion, the solvent, and the presence of a catalyst.
Source: Google
Answer:
RER
Explanation:
The proteins and lipids, essential for building the cell membrane, are
manufactured by the rough endoplasmic reticulum
