Answer:
The correct answer is - C) pH paper + Phenol red.
Explanation:
Iodine is a reagent and indicator that is used to test confirm the presence of the starch in the sample by producing its characteristic blue-black color.
pH paper is an indicator that helps in telling about the pH level of a specific sample or solution by changing its color.
Biuret reagent is used to test for the presence of protein as it identifies peptide bonds in a solution.
Benedict's solution is an indicator that is used to confirm the presence of simple sugar in the solution or sample.
Phenol red solution is used as a pH scale to identifies the pH value of a sample or solution.
Sudan Iv is used to find the lipids and fats in the sample or solution.
Thus, the correct answer is - C) pH paper + Phenol red test for similar conditions.
Pores should be the correct answer
Answer:
are the reactants, and the products are
A reactant is a substance that takes part and undergoes a chemical change during a reaction, and a product is the result of the reaction.
This chemical reaction here is photosynthesis. 6 compounds of carbon dioxide and 6 compounds of water (the reactants) are chemically combined to produce sugar and 6 oxygen molecules (the products).
Answer: Option A.
Different beaks were available
Explanation:
Variation is the difference between traits, cells, or characteristics between organisms of any species which is caused by change in genetic information or effect of environmental factors on the expression of genes.
From the question, different beaks were available because there is variation or differences in shapes, sizes and expression.