Select the correct answer. When an antigen attacks the body, it activates adaptive immunity. This adaptive immunity produces a strong response when it encounters the same antigen for the second time. Which feature of adaptive immunity is essential for this kind of response? A. the ability to remember the antigen it encounters B. the ability to distinguish between self and nonself antigens C. the ability to produce nonspecific antibodies against the foreign antigen D. the ability to secrete lysozymes against pathogenic antigens

Which of the following is the most likely outcome of global warming

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 8 options: the cold balloon expands and rises. the warm balloon shrinks and sinks. the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the warm balloon expands and rises. the cold balloon shrinks and sinks.

Ineed with a hypothesis my question is can seeds sprout in different locations?