<span>Radiolarians have a cell wall made of
.....
According to </span>
https://microbewiki.kenyon.edu/index.php/Radiolaria <span>
"</span>
Radiolaria are unicellular organisms. They have mineral skeletons (tests) that are composed
of silica. The tests are formed through the absorption of silicon
compounds. This skeleton is covered with cytoplasm, which is withdrawn
if the organism is disturbed."
There cell wall is made of according to another website
...
<span> "Radiolaria....have cell walls made up of thick cellulose walls"
Hope this helps:)
@SamSamySamantha
</span>
Cell membrane is made up of Lipid Bilayer which are fluid in nature , means they move continuosly , due to this fluid nature they are selectively permeable to compounds.
Retina is location along the back of an eye (Option D)
Hope that this was helpful :)
Answer - True
Reasoning - The reason is without predation the animals will die since if they won't hunt they won't eat and die. Yes it's important to because it helps maintain the ecosystem. For example a Tiger is on top of the food chain so it's to gotta hunt. Just like down those line of chains.
Short term memory is limited to remembering about seven items of unfimilar material
