Answer:
Most cells within planarians tend to be very close to their gastrovascular cavity, in addition to their external environments. Also, planarians have the ability for oxygen and carbon dioxide to diffuse through the cells on their body walls: this makes it unnecessary for these varieties of flatworms to need a dedicated bodily system.
I think the deficiency of dedicated respiratory and circulatory systems in Planarians does not cause a problem because none of their cells are far removed from the gastrovascular cavity or from the external environment. Planarians are free-living flatworms and form the class Turbellarians in the Phylum Platyhelminthes. Flatworms have three tissue layers, that is the ectoderm, mesoderm, and endoderm.
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Explanation:
Answer:
it has thermal energy but at a less amount.
Explanation:
like know how heat transfers to hight tempter to low. some thing like that
<em>The two main process by which plant cells absorb, release, and use energy are Photosynthesis and respiration.</em>
Compressibility is a chemical property because it’s made more compact
It’s b beachside it causes respiration
