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.
hope this helps!!!!!....
Explanation:
Explanation:
There would be unlimited number of sperms.
there would be 56 eggs. Hope it helps.
<h2>Please mark as BRAINLIEST</h2>
Answer:
The addition of a phosphate group, ADP is converted to ATP
Explanation:
What are your options, if you have any?
I know they both need each other in order to function, but I dont know if thats the answer needed, or if its more complicated than that..
hope I could help atleast a bit!