1. All animals except sponges have , groups of cells that work together to perform a specific function. 2. All animals eat other organisms in order to gain building materials for the body. This makes them , since they obtain necessary energy and chemical building blocks from the environment. 3. One key adaptation of animals was the evolution of a(n) , a fluid-filled gap between the outer wall of the body and the outer wall of the digestive system. 4. All animals are , organisms with cells that are relatively large, complex, and contain membrane-enclosed organelles such as the nucleus. 5. Cnidarians are the only animal phylum to display , meaning that their bodies can be divided any way through the center point to yield two even halves. All other adult animals display , meaning that their bodies can only be sliced lengthwise through the midline to produce two even halves.

explanation:

the universal gravitation equation. since the gravitational force is directly proportional to the mass of both interacting objects, more massive objects will attract each other with a greater gravitational force. if the mass of one of the objects is doubled, then the force of gravity between them is doubled.

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.

i dont know it at allnow im just getting points at this pint

glacial erosion, the picking up and movement of earth beneath a glacier, is also referred to as plucking. erosion and transportation of individual pieces of bedrock, especially large "joint block occur as a result of this glacial erosion. plucking is type of erosion in which rocks become frozen into the bottom and sides of the glacier.as the glacier moves downhill it 'plucks' the rocks frozen into the glacier from the ground.