20. Based on what you learned about the female and male reproductive parts, look closely and determine if this model section is a male or female?

We learned about the correct order of steps in the scientific method.  Use the word bank to answer the fill-in-the blank questions. Word Bank: conclusion, experiment, hypothesis. observation, inquiry, take notes, if-then statement The first step in the scientific method is to make a(n) . The second step is to ask a scientific question,  which should be testable.  After step 2, you will then form a(n) .  This should be testable, and falsifiable.  The fourth step is to make a prediction. You should then test your prediction by completing a(n) in step 5.  You will then analyze your data in step 6.  Based on your data, you will form your , where you will either accept or reject the answer to your question.

A scientist wants to test the hypothesis that a certain bird species in her back yard changes its songs to warning calls whenever it detects the presence of a potential predator. Which of the following most likely describes her initial observations? 

Label the following veins.

Extra Credit For 5 points, choose one organ in the body and trace blood to that organ from the heart and then back to the heart. For full credit, you must name ALL the heart structures the blood passes through including valves, chambers, and vessels, as well as the arteries, veins, and capillaries to and from the organ. These structures must be listed by name in the correct order. At each step-depict whether the blood is oxygenated or deoxygenated. You should start and end at the same organ. For example, start at the liver and end at the liver, tracing the path of blood back to the heart and to the liver again. Example: 1. Structure 1 Name- Type of Blood 2. Structure 2 Name- Type of Blood

Identify the structure numbered 44 (the chamber).

Identify the structure numbered 14.

Identify the structure numbered 40 (the white and red strands are the same thing).

Describe three mechanisms that allow blood to flow in veins.

During ventricular ejection:  the atria are , the ventricles are the atrioventricular valves are the semi-lunar valves are .