liquid
So that they can take their food from the water.
Fibre. thanks!!!!!!!!!!!!!!!!! Fibre. thanks!!!!!!!!!!!!!!!!!
Sponges are animals and are heterotrophs- they need to take in nutrients and food for energy. The nutrients are carried by the water into the sponge.
peristalsis
False: Fiber
your heart is a pump and keeps the blood flowing
the nutritions in the food is what the body needs to keep it healthy
mouth--> oesophagus--> stomach--> duodenum--> small intestine--> large intestine--> rectum--> well... its not in the body after that... a.k.a straight through the digestive system, it is only used as 'bulk' for the digestive muscles to push against to help keep food moving through the digestive system, at no point does it enter the blood as it is (mainly) indigestible 'cellulose'
The heart.
managing food is to keep a balance in food and for your body too.
Keep moving. When you are moving, your blood is circulating. When your blood is circulating, your body remains warm.
No, centripetal force is not acting when a body is moving in a straight line. Centripetal force is required to keep an object moving in a curved path.