When a tree suffers from a decreased ability to transport materials within the phloem, what is directly impacted? OPTIONS:
- volume of water in the xylem
- flow of necessary nutrients
- response to environmental factors
- rate of photosynthesis in leaves
A: flow of necessary nutrients

Which mechanism helps carbon to cycle from the atmosphere to living organisms? OPTIONS:
- tissue decomposition
- cellular respiration
- photosynthesis
- transpiration
A: photosynthesis

What travels through the stem of a plant? OPTIONS:
- water and food
- food and nectar
- nectar and soil
- soil and water
A: water and food

Which of the following foods is highest in polysaccharides? OPTIONS:
- broccoli
- potatoes
- cheese
- fish
A:
potatoes