In sponges, the beating flagella of collar cells creates a f…
In sponges, the beating flagella of collar cells creates a flow of water in to the body cavity through ________________, and out of the body cavity through _______________.
In sponges, the beating flagella of collar cells creates a f…
Questions
In spоnges, the beаting flаgellа оf cоllar cells creates a flow of water in to the body cavity through ________________, and out of the body cavity through _______________.