1.      Which of the below hormones capable of dual signalling. (a)    Protein hormones

(b)    Steroid hormones

(c)     Amino acids derivative hormones​

Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. the following chemical equation shows the combustion of ethane. balance the equation by filling in the coefficients. c2h6 + o2 → co2 + h2o

Consider the following reaction: 2h2 + o2 —> 2h2o a) what are the reactants in this reaction? b) what are the products in this reaction? c) how many molecules of oxygen are used in this reaction?

Along what geographical feature are most of the oil producing regions located