AND THANKS

What evidence BEST supports the presence of atmospheric oxygen 2.7 billion years ago?
A) organic material in meteorites
B) layered iron rust in rocks
C) fossils found in stomatolites
D) carbon 14 in plants

Which of the following best describes the relationship between glucose and complex molecules such as hormones?

All organisms contribute some water to the water cycle by conducting

Yeast cells reproduce quickly by budding. this is a form of reproduction so all the yeast cells a) sexual; vary b) asexual; vary c) asexual; are identical d) sexual; differ from the parents submit hint structures and functions of cells cellular reproduction