Collaborate With a partner, discuss how a drought caused by a decrease in precipitation might affect the oxygen cycle. Use evidence from previous lessons to support your answer.

Below, the levels of organization in a multicellular organism are shown from least to most complex. which level of organization can be described as several different types of tissues working together to perform a common task?

Which of these is not an example of molecular homology? 1. use of dna and rna as genetic material 2.use of glycolysis as the first step in cellular respiration in both plants and animals 3. the lack of an igf-1 gene in prokaryotes 4. the use of aldolase b to break down fructose in bacteria, plants and animals

In figure 1-2 what is the distance from point b to point c?