When analyzing the ice core, the scientists discovered that the carbon dioxide (co2) levels in the atmosphere were much lower than they are now. since co2 is a greenhouse gas, what does the lower co2 level in the past say about our current climate?

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above

In pea plants, yellow seed color (y) is dominant and green seed color (y) is recessive. based on the punnett squares, what are the chances that the offspring in the second generation will have green seeds?

What is a difference between systemic and pulmonary circulation? a. systemic circulation carries oxygenated blood to the lungs and pulmonary circulation carries deoxygenated blood to the body. b. systemic circulation carries deoxygenated blood to the lungs and pulmonary circulation carries oxygenated blood to the body. c. systemic circulation carries deoxygenated blood to the body and pulmonary circulation carries oxygenated blood to the lungs. d. systemic circulation carries oxygenated blood to the body and pulmonary circulation carries deoxygenated blood to the lungs.