Question

For these curves: (2) What type of graph is this? 1000 Type 1 Type 2 (2) What selection strategy is characterized By the top line? By the bottom line? No. survivors (n) Type 3 (3) Describe the life history of an organism that follows the Type 3 curve. Age

Answer 1

1. This is a survivorship graph showing survivors of different ages

2. In type 1 curve, organisms tend not to die when they are young or middle-aged but, instead, die when they become elderly.

In type 3 curve, very few organisms survive their younger years. However, the lucky ones that make it through youth are likely to have pretty long lives after that.

3. Trees, marine invertebrates, and most fish have a Type III survivorship curve. In a Type III curve, very few organisms survive their younger years. However, the lucky ones that make it through youth are likely to have pretty long lives after that. Species with this type of curve usually have lots of offspring at once—such as a tree releasing thousands of seeds—but don't provide much care for the offspring.