Answer:
E. digestive system
Explanation:
Mollusks/Molluscs are<u> invertebrates</u> of the <em>Kingdom Animalia</em>. It is said to have the <em>biggest population </em>when it comes to the <em>marine phylum. </em>
It has an organ called the "radula" that is responsible for grinding food. This organ looks like a tongue. Its "crystalline style" is located in the middle part of its gut. It is responsible for secreting enzymes and it helps in extracellular digestions.
Clearly, <u>the </u><u>radula</u><u> and</u><u> crystalline style</u><u> are both part of the</u><em><u> mollusc's digestive system.</u></em>
Biology in which you compare embryo to see how subtle changes can affect development
When any animal becomes extinct reguardless of its position in the food chain there is a trickling affect to all other links, creating overpopulation and over kill of other species now that the habitat balance has become skewed. Having one species become extinct will cause further issues a for other species down the road.
