<span>Left b/c of harder workload
:)</span>
Answer:
The correct answer is C. It is not true of deuterostomates that the mouth forms from the blastopore.
Explanation:
Deuterostomates are a group of meta-zoises celomated with bilateral symmetry that have the oral opening not derived from the embryonic blastopore, but formed in a secondary way.
The segmentation of the egg is generally radial and the blastopore forms the anus. The mouth forms from the ectoderma and the mesoderma is formed by enterocele. The discussion about the phylogeny of deuterostomates and protostems has not been fully established.
<span>b. photosynthetic organisms provide energy for other organisms on earth.
B is the most suitable answer as photosynthetic organisms get their energy from the sun, and other organisms get their energy from photosynthetic organisms, so the sun is the source of energy for all life.</span>
<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 This skeleton is covered with cytoplasm, which is withdrawn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
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