Activity 1 of 2 Part A: Construct a written argument of how genetic variation in the ladybug population increased the chance of survival of

some individuals and changed the population over time. Include evidence and reasoning.

Activity 2 of 2

Part B: Predict the percentage of ladybugs in Tilburg that will be melanic in 2017. Provide reasoning to justify your

prediction.

1. dermis

2. chemical

3. urine

4. viruses

5. antibodies

the answer to your question is:

c. complementary base-pairing

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.