Organisms have long been classified based on their structural similarities and differences. Which technique has very recently provided scientists with another important tool in this process? a. dichotomous keys b. improved animal trapping ability c. DNA analysis d. computer-generated cladograms

Chlorophyll is found in plant leaves and absorbs light from the sun to enable plants to perform photosynthesis. magnesium is an important component of chlorophyll. the concentration of magnesium ions is higher in the root-hair cells of plants than in the soil. which mechanism of ion uptake would best enable a plant to produce a steady supply of chlorophyll? osmosis diffusion passive transport active transport

Fungi are classified into how many groups? a. 1 group b. 2 groups c. 3 groups d. 4 groups

During photosynthesis, hydrogen ions are most directly used to in the chloroplast pictured above. a) make glucose b) make chlorophyll c) produce carbon dioxide d) drive the production of atp