Answer:
cell membrane is like doors and windows!!
Hope this helps!
Explanation:
The organism that was most likely to live at the same time as brachiopods were
Trilobites
D. A variable or alteration to one part that affects an entire system
Explanation:
When talking about natural and physical systems, change is a variable or alteration to one part that affects an entire system.
Systems are groups of processes that have the same overall function. There are several types of interacting components that makes up both physical and natural systems in our world.
- The part of system is related and interconnected via the changes they undergo.
- Changes typically causes variation or alteration of parts of a system.
learn more:
Biogeochemical cycle brainly.com/question/3509510
#learnwithBrainly
Answer:
amoeba
Explanation:
unicellular are the organism which have single cell.
Nitrogen and oxygen make up about 99%of the atmosphere. I'm not sure if it will help! But thats all I know.
