Question 15
When balancing a chemical equation, which of the following can be changed?

If a cell's main function is to produce proteins to be excreted, which organelles would you expect to be larger

Use the phylogenetic tree to the right to determine which statement below is true. organisms a and f are not related. organism e is more closely related to organism b than organism f. organisms c and d are more closely related than organisms a and b. phylogenetic trees

Tropical rain forests support more species per unit area than any other terrestrial ecosystem. what is one way rain forests are important to the health of the biosphere?