I’ll will mark you as brainliest. Plz help ASAP!! The graph shows levels of carbon dioxide (CO2) in Earth's atmosphere over the last 400,000 years.

Based on the data in the graph, what can be said about current carbon
dioxide levels?

A. They are at the high point of a natural, repeating cycle.
B. They are no different from levels in the past.
C. They are far higher than the highest natural levels.
D. They are much lower than normal.

Ry was studying two populations of the same species of lizards. one population lived on an island and the other lived on the mainland. both populations were affected by a hurricane that hit the island and the mainland with equal force. a year later, henry was testing the gene frequency and saw a decrease in genetic variation in the island species, but not in the mainland species. which best describes a conclusion he might have reached? gene flow greatly affects small populations, but large populations can recover. genetic drift greatly affects small populations, but large populations can recover. gene flow greatly affects large populations, but small populations can recover. genetic drift greatly affects large populations, but small populations can recover.

Cells destroy body cells infected by a virus or bacteria.

What factors contribute to the effect an environmental toxin has on the human body?