Answer:
Gases do not have a definite shape or volume because the molecules in gases are very loosely packed, they have large intermolecular spaces and hence they move around. The force of attraction between molecules is also very less, as a result gases acquire any shape or any volume.
Therefore, gases take the shape of the container and occupy the complete volume of that particular container.
The phylum Mollusca includes the: Oyster, Clam, Snail,<span> chiton</span><span> O</span>ctopus<span>, and Squid</span>.<span> The main part of the body is enclosed in a fold of tissue called the mantle. They have bilateral symmetry. Many kinds of mollusks are covered by a shell.
Let me know if you need more explanations! </span><span />
Associative learning is the event may be two stimuli or a response and its consequences
