Question 1 (1 point) Energy spent on reproduction constitutes an organism\'s \"r
ID: 134733 • Letter: Q
Question
Question 1 (1 point) Energy spent on reproduction constitutes an organism's "reproductive effort". The figure below shows the relationship between reproductive effort (number of cones produced) and growth measured as the relative width of annual rings for the Douglas fir, Pseudotsuga menziei. The line represents the general trend as defined by the equation: y -1.70x+ 107.5; n- 32, 2 0.71, P 0.008. 120 115 110 105 100 95 F 90 85 80 75 0 2 46 8 10 12 14 16 18 20 22 Mean number of cones per tree (10)Explanation / Answer
Q2.
D.width of annual rings
A dependent variable is what one measures in the experiment and what is affected. In other words, it is a variable that changes in response to the independent variable.
Q3.
B, negative
As the reproductive effort (the number of cones produced) increased the relative width of the fern decreased. This shows a negative trend between reproductive effort and width of the cone. It is also indicated by the negative slope point in the straight line equation.