After six-lives, what percentage of a radioactive sample will remain? a. 0%-1% b. 1%-3% c. 3%-6% d. 6%-10%

Apatient is in need of hydration. which type of solution are the patient's cells most likely in?

Which of the following lines of evidence would best support your assertion that a particular plant is an angiosperm? a) it produces seeds. b) it retains its fertilized egg within its archaegonium. c) it lacks gametangia. d) it undergoes alternation of generations.

Will mark branliest. the theory of plate tectonics was developed with the contribution of scientists from many different disciplines. which of the following is a contribution from geophysicists?