What is created by the flow of electric current? A battery
An electric field
A magnetic field
A resistor

Why was the sample heated in step 5? describe the chemical principles involved in the reasoning behind this step?

In the african savanna,more wildebeests are born than the environment can support. which is most likely to happen over a period of years as a result

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.