How might a wide variety of plants affect an ecosystem's sustainability? A. The more types of plants there are, the more nutrients will be in the soil, increasing the ecosystem's likelihood of survival.

B. If disease strikes, only some types of plants will be affected, increasing the ecosystem's likelihood of survival.

C. The more types of plants there are, the more competition for resources will take place, decreasing the ecosystem's likelihood of survival.

D. If disease strikes, the plants will all be affected and likely die, decreasing the ecosystem's likelihood of survival.​

To maintain asepsis when administering an injection, all parts of the syringe can be handled except the:

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.

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer