The diagram below shows part of the nitrogen cycle. Which of the numbered stages involve bacteria?

1 and 3

2 and 4

3 and 4

Which best describes the scientific method? a. a path of clearly defined steps that must be followed in a particular order b. a possible answer to a scientific question based on knowledge or research c. the recipe for how to conduct an experiment that must be followed precisely d. the process of hypothesis and testing through which scientific inquiry occurs

Sort the examples by the type of diversity that they exhibit a park has 80 species of trees red, yellow, and orange bell peppers are all members of the same species individuals of the same lizard species have different mating strategies. five different bird species are at a bird feeder. genetic diversity species diversity

This is a scaffolding of protein fibers that us sell keep it shape in a cell division and cell movement