Statements: All cats are animals. Some animals are pets. All pets are loved. Some loved are cared for. Conclusion I: Some cats are pets. Conclusion II: All cats are cared for. Which is correct?

Hemoglobin is found in:

Find next number: 8, 12, 16, 20, ?

Oxygen is transported in the blood primarily by:

Find the next term: 1, 2, 6, 24, 120, ?

Find next in series: Z, W, S, N, ?