What is the ph of a substance with a hydroxide{oh] of 10-6

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.

What types of questions could a researcher investigate using a computer model of the enzyme maltase ?

Question#29: why does the tropical ocean have a greater temperature range than the temperate ocean?