Answer:
Tentacles have specialised stinging cells called nematocysts. They use these to immobilise their prey so that the tentacles are then able to move the food into the mouth.
Explanation:
The kidneys is controlled by hormones and by the composition of the urine since the hormone released is called ADH which is produced by the pituitary gland.
Two atoms of oxygen element are represented as "20". The two oxygen atoms are unreactive state and are unstable readily reacts and form molecules.
O₂ reprersents one molecule oxygen. When the two oxygen atoms reacts with each other forms one molecule of Oxygen. After the formation of Oxygen molecule, it (oxygen) has got stability.
A change in their food, from trees to grass in the Great Plains.
Explanation:
Botanically, mosses are non-vascular plants
