Marking ! will mark brainliest answer provide the explanation's for the following terms - venus return - muscular pump - respiratory pump - gravity

Venus return is the rate of the blood flow that leads back to the heart. It usually normally limits cardiac output.

The pump is when your muscles will swell up during your workout, which is caused from the excessive amount of blood going into the muscle and filling it up the same way you would kinda fill up a water balloon.

A Respiratory Pump is one of those abdominal and thoracic structures that cause the expansion and contraction of the lungs.

Gravity is the phenomenon by which two bodies having mass are litarally just attracted to each other.  

Hope this helps:)

well god made humans for male and female to merry each other, and he does not hate gays he condemns it, and that's also the example jehovah's witnesses follow, we don't get involved with arguments or hate gays but we just condemn it. to find more information, you can go to our website jw.org and find more answers to your question just by tapping of the top right search bar and asking your question and then it will show you all the free bible publications that fit with you question, this site is entirely free and there fo anyone's usage.   ( i do not own jw.org)

you may having too much sleep.. a good night sleep consists of about 7 hours. more than that could be the reason you're still tired throughout the day.