If a man has type ab blood and his wife has type o blood what is the probability that they have a type o child

Which of these statements best describes the st. lawrence seaway? the st. lawrence seaway connects the st. lawrence river with the arctic ocean. the st. lawrence seaway provides an important trading route between the u.s. and mexico. the st. lawrence seaway provides an important trading route for the u.s, but has little value for canada. the st. lawrence seaway connects the great lakes, the st. lawrence river, and the atlantic ocean.

The condition in which joints are inflamed is bursitis select the best answer from the choices provided ot f

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?