The correct answer for 7 is A, the nucleus. This is because the nucleus houses all of the DNA. Sections of the DNA code for proteins are transcribed into mRNA and later translated into final protein units by ribosomes.
<span>The spicules have an important purpose for loosely constructed animal such as sponge. First of all, spicules give structure which is vital due to loose construction. Secondly, it protects from predators. This is similar to porcupine quills in serving to protect.</span>
Answer:
Chiton
Explanation:
Chitons are marine molluscs of varying size :)
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<span>Hooke had been viewing the cell walls in cork tissue.</span>