20. Which of the following statements is/are correct?
A. Molluscs can live in marine, and freshwater habitats but do not live in terrestrial habitats.
B. Given the following on the organism:
I. An animal
II. Multicellular
III. has tissues
IV. has a digestive tract
V. exhibits bilaterally symmetry as an adult
This organism could be a member of the Phylum Mollusca
C. Molluscs can produce a shell and the presence of a shell at one point in development is a requirement for inclusion into this phylum.
D. Lobsters are members of the phylum Mollusca
E. Molluscs have three main body parts, a muscular foot, a visceral mass, and a head

Option C and E.

Explanation:

Phylum molluscs are invertebrates animals and they are the second largest phylum in the animal kingdom.

Some molluscs live in marine habitats and numerous species live in freshwater and terrestrial habitats.

Molluscs are coelomates and have three distinct features which are mantle( for breathing and excretion) , radula and nervous system. Molluscs have shell and have three main parts which are head, visceral mass and muscular foot. Examples of molluscs are snails, periwinkles, squids, oysters, octopus e.t.c.

i think its control and coordinate because im pretty sure thats what tissue does and the joints are what control movement and then your skeletal/ bones provides portection. hope that .

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