Answer: Organ systems:
they work together to carry out a particular function for the organism.
Explanation:
B it's a vegstigial trait
Many biology texts today still refer to the appendix as a vestigial organ
Answer:
C Matter and energy can be credited or destroyed
Answer: yes
Explanation: Prokaryotes are unicellular organisms that lack organelles or other internal membrane-bound structures. ... Some bacteria have a capsule outside the cell wall. Other structures are present in some prokaryotic species, but not in others.
