Biology Unit 3 Day 4 (Part 2)

Learning Objective: Students will learn about species diversity by analyzing and 

interpreting data in writing using technical vocabulary (mutations, natural 

selection, selection pressure, adaptation, ecosystem) and science ideas (cause 

and effect).



Questions:

1. What causes populations of species to change?
2. Do you think changes are important for a species?

A population of beetles are kept in a controlled ecosystem. No beetles are allowed to enter or leave. The graph below shows the population of beetles. Which best describes the ecosystem at Point A?
	A. There is no competition for resources. B. It has reached carrying capacity. C. The death rate is higher than the birthrate. D. The population is decreasing. Exit Ticket for Day 4:  What are your thoughts on biodiversity? (2-3 sentences)