On a logarithmic scale, the species area relationship is a straight line described by the equation log S = log C + Z log A.
What does S, C, Z and A represent in the given equation? Select the correct answer from the codes given below.
`{:("Species richness" ,=,1),("Slope of the line",= ,2),("Y-intercept",=,3),("Area",=,4):}`
a) 1 2 3 4
C S Z A
b) 1 2 3 4
S Z C A
c) 1 2 3 4
Z S C A
d) 1 2 3 4
A C S Z

Options

A. a) `{:(1,2,3,4),(C,S,Z,A):}`
B. b) `{:(1,2,3,4),(S,Z,C,A):}`
C. c) `{:(1,2,3,4),(Z,S,C,A):}`
D. d) `{:(1,2,3,4),(A,C,S,Z):}`

Explanation

To solve the question regarding the species-area relationship represented by the equation log S = log C + Z log A, we need to identify what each variable (S, C, Z, and A) represents in the context of this equation.

### Step-by-Step Solution:

1. **Identify S**:
- In the equation, S represents "species richness." This is the number of different species present in a given area.

2. **Identify C**:
- C is the "Y-intercept" of the line when the equation is plotted on a logarithmic scale. It indicates the value of log S when log A is zero.

3. **Identify Z**:
- Z represents the "slope of the line." This value indicates how much species richness (S) changes with a change in area (A) on a logarithmic scale.

4. **Identify A**:
- A represents "area." This is the size of the habitat or region being studied in relation to species richness.

### Summary of Representations:
- S = Species richness
- C = Y-intercept
- Z = Slope of the line
- A = Area

### Correct Answer:
Based on the above identifications, the correct option is:
**b)** 1 (S) 2 (Z) 3 (C) 4 (A)