Answer:
2
Explanation:
2 should be placed in front of Hcl so that the mass of the products and reactants be will equal.
The correct answer is the mall directory.
Like nucleus that stores genetic material in the form of DNA, the directory of mall stores all the major information of the mall, that is, the directory tells each and every information of the mall.
Apart from storing hereditary material of the cell, that is, DNA, the nucleus also performs various activities of the cell that comprises intermediary metabolism, growth, reproduction, and protein synthesis. Only the eukaryotes exhibit a nucleus.
Given that ATP is the product of the reaction, it must be cellular respiration (also, since it occurs in both plants and animals it can't be photosynthesis).
A and B must be glucose and oxygen. It makes sense if you think about it. We breathe in oxygen, and we eat food. Food contains glucose (sugar). We need to consume these things in order to make energy. Carbon dioxide is D because it's the "left over" of this reaction. That's why we exhale it. And C is enzymes because they catalyze (promote) just about every reaction in the body.
Another way to remember this in the future is just to memorize the equation (attached). Just remember that its the exact opposite of photosynthesis.
This is an example of evolution through natural selection. The peppered moths started off with a light color scheme when the industrial revolution started, and they had this to blend into the trees. The better the moths could blend in, the less likely they were to be preyed upon. Once the trees changed colors, the light moths were vulnerable. The months that thrived in this change were the darkly colored moths. These moths then bred and spread their dark color pattern to best fit into the new environment.
