The first two. I forgot what they are called but i know its the first two. Hope this helps :)
Answer: Proteins are large, complex molecules that play many critical roles in the body. They do most of the work in cells and are required for the structure, function, and regulation of the body's tissues and organs.
Explanation:
What Is Main Purpose of Protein in Living Things?
Muscle Mass. The building blocks of proteins are amino acids.
Cell Formation. Every cell in your body has some protein in it.
Tissue Maintenance and Repair. You need protein to help your body repair cells and create new ones.
Enzymes and Hormones.
Energy Source.
Answer:
Weight of the soil (500g)
Explanation:
According to this question, some students are conducting an experiment in order to find out which of the different soils used absorb heat the fastest. For the first test, they put 500 grams of SAND in a beaker and put a thermometer in the sand.
In an experiment, the variables that must be kept constant for all the groups is called the CONSTANT OR CONTROLLED VARIABLE. This is done in order not to influence the outcome of the experiment. In this case, the weight (500g) of the soil should be kept the same for all other tests.
This means that for the remaining soil being tested, 500g of each type of soil should be used.
Answer:
top: response bias, middle: question-wording bias, bottom: under-coverage
Explanation:
Answer:
Construction of Fish Ladders to provide a mechanism for migrating species to move upstream.
Explanation:
So that way, the fish and other creatures can continue living the way they were.
