What "equation" is used to calculate the average mass for isotopes?

Pls! plant cells and animal cells were observed under a microscope. the characteristics of two cells are listed below. cell p: does not capture sunlight cell q: has cytoplasm but no chloroplast which statement about the two cells is correct? cell q also has a cell wall. cell q also has large vacuole. cell p also has a large vacuole. cell p also has a cell membrane.

Which of the following best supports the concept that genetic information is passed on to offspring from both of their parents, not just one?

1. list three scientific reasons cockroaches may fly.