Explain how a type b blood transfusion could be fatal for a person with type a blood. be specific.

Which of the following will not cause mass extinction? a. drastic change is weather b. geological change c. both a and b d. none of the above

In the family tree below, people with the recessive trait of attached earlobes are shaded gray.

How do tides affect the organisms living in intertidal zones? a. no organisms live in intertidal zones due to the tumultuous environment. b. the mechanical forces of the waves keeps the organisms clean. c. only plants live in intertidal zones because the animals float away with the waves and never return. d. the mechanical forces of the waves can dislodge the organisms from their habitat.