Read the following statements carefully:
Statement 1: A consumption function describes the relationship between consumption and savings.
Statement 2: Consumption function consists of two components—autonomous consumption and induced consumption.
Statement 1 is false because the consumption function describes the relationship between consumption and income, not savings.
Statement 2 is true because the consumption function has two components: autonomous consumption (independent of income) and induced consumption (dependent on income).

Draw a rough sketch for the curve $y = 2 + |x + 1|$. Using integration, find the area of the region bounded by the curve $y = 2 + |x + 1|$, $x = -4$, $x = 3$, and $y = 0$.
Study the given molecular structure of double-stranded polynucleotide chain of DNA and answer the questions that follow. 
(a) How many phosphodiester bonds are present in the given double-stranded polynucleotide chain?
(b) How many base pairs are there in each helical turn of double helix structure of DNA? Also write the distance between a base pair in a helix.
(c) In addition to H-bonds, what confers additional stability to the helical structure of DNA?
