một bệnh nhân bị viêm ruột non, được bác sĩ chỉ định cần tiêm kháng sinh vào tĩnh mạch tay trái, em hãy mô tả đường đi của thuốc theo dòng chảy của máu trong mạch từ tĩnh mạch tay trái đến vùng viêm ở ruột

Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction.

Which of the following is likely not involved in this example of ecological succession? a) the rotting remains of plants add to the fertility of the soil. b)the soil becomes so fertile that eel grass is replaced by other plant species. c) the roots from plants stabilize the sediment, keeping it in place. d) the concentration of salt becomes so high that all plant life is destroyed.

Identify the area on the image where the force of attraction is the strongest.