In this assignment, you will apply your knowledge of the cardiovascular system as you explore articles related to the heart. You will use your understanding of the content to answer the questions provided. Read the article and use your understanding to answer the questions that follow. Preventing Heart Disease What can you do to keep your heart healthy?

Asap timed! 1. ice core samples from glaciers ice caps contain bubbles of ancient atmosphere that are in layers based on age. what questions are scientists most interested in? a. how the amount of water vapor needed to make the ice has changed b. how the amount of ozone has changed over time.c. how the amount of ice in each layer has changed over time d. how the amount of carbon dioxide has changed over time 2. what produces milankovich cycles ? a. sunspots ams solar flare on the suns surface b. changes in the earths orbit c. gravitational changes bases on the position of the sun and the moond. cycles of vegetation that result in desert and rainforest conditions

Describe how alleles and genes are related

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?