The hydraulic skeleton is composed of muscle and fluid.
The answer is D because plants intake CO2 through photosynthesis but cannot perform cellular respiration because that is the form of gaining energy in humans and other heterotrophic organisms. Hope this helps!
There's 50% chance of having a boy.
There's nothing specific states you're gonna have a boy. It is just like luck.
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It is simple, divide 100% by 2.</em>