A man who was blood group A and a woman who was blood group B had four children, each with a different blood group A, B, AB, and O. Which type of variation does this demonstrate?
A. continuous, environmental and genetic
B. continuous and genetic only
C. discontinuous, environmental and genetic
D. discontinuous and genetic only

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

Sea levels are rising due to climate change while increasing numbers of people are moving into coastal areas. to accommodate more people, there has been increased construction of beachfront resorts and condominiums. how is this impacting sea turtle numbers and biodiversity and why? a. the increased human population in coastal areas has meant that more food is available to the turtles (e.g., dropped food, waste from restaurants), which has led to an increase in the numbers and diversity of sea turtles. b. there has been very little change in the numbers and biodiversity of sea turtles because the planet is so vast that they can simply relocate to less crowded beaches. c. this has resulted in a decrease in numbers and diversity of sea turtles because it is restricting available nesting sites, and hence reproduction. d. this has resulted in an increase in numbers and diversity of sea turtles because people are around to protect them from natural predators.

What is the starting point in replication called