Answer:
Most macromolecules are made from single subunits, or building blocks, called monomers. The monomers combine with each other using covalent bonds to form larger molecules known as polymers. When they do this the monomers release water molecules as byproducts.
Animal Kingdom. is the answer I hope
Particles in a solid are tightly and closely packed together. They do not move. For example rock, wood etc.
Particles in a liquid are loosely packed as compared to solids.They move or slide slowly. For example water.
Particles in gases are very loosely packed and freely move and float. For example oxygen.
The students will have to model their marbles accordingly. For solids they will have to put the marbles together in a cluster. For showing liquids, they will have to arrange marbles with slight gaps between them. For showing gases, they will have to arrange the marbles sparsely and scatter them in the box.
Answer:
78%
Explanation:
Air is a mixture of nitrogen 78%, oxygen 21%, argon 0.9%, carbon dioxide 0.04% and other gases. Nitrogen is an element that makes up 78% of the air. It is essential to plants for protein synthesis. Though present in large quantities as free nitrogen gas in the atmosphere, it is taken up by plant roots only in the form of ions, such as nitrates and nitrites. Nitrogen is continually recycled in the ecosystem through biological processes involving bacteria.
