IAG_44.docx!!!!!!!!!!!!!!!! IAG_44.docx IAG_44.docx
OpenStax Biology 2e Instructor Answer Guide
Biology 2e
Unit 8: Ecology
Chapter 44: Ecology and the Biosphere
Visual Connection Questions
1. How might turnover in tropical lakes differ from turnover in lakes that exist in temperate
regions? Think of the variation, or lack of variation, in seasonal temperature change.
Tropical lakes don’t freeze, so they don’t undergo spring turnover in the same way temperate
lakes do. However, stratification does occur, as well as seasonal turnover.
2. Which of the following statements about biomes is false?
c. Boreal forests are dominated by deciduous trees.
IAG_44.docx 4/20/2026, 2:15:29 PM IAG_44.docx
OpenStax Biology 2e Instructor Answer Guide
Biology 2e
Unit 8: Ecology
Chapter 44: Ecology and the Biosphere
Visual Connection Questions
1. How might turnover in tropical lakes differ from turnover in lakes that exist in temperate
regions? Think of the variation, or lack of variation, in seasonal temperature change.
Tropical lakes don’t freeze, so they don’t undergo spring turnover in the same way temperate
lakes do. However, stratification does occur, as well as seasonal turnover.
2. Which of the following statements about biomes is false?
c. Boreal forests are dominated by deciduous trees.
IAG_44.docx 4/20/2026, 2:15:29 PM IAG_44.docx
