Help it will be greatly appreciated. My dad said that i need to finish this before he comes home or else i will get a whoopin

Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm

Membrane vesicles containing an internal sodium chloride (nacl) concentration of 0.14 m are placed into separate beakers each containing a different solution. the first beaker contains 0.14 m sucrose, while the second beaker contains 0.14 m calcium chloride (cacl2). the temperature is 25°c. what is the solute potential inside the vesicles, expressed in units of mpa?

What is the goal of cellular respiration