9. when a muscle contracts involuntarily
What muscle is this?

The bacteria found in soil is usually harmful and measures are taken to remove any traces of microorganisms. true or false

Which sentence best describes the relationship between chlorophyll and the chloroplast? a.)chlorophyll is a chemical found in a chloroplast. b.) chloroplast is a chemical found in a chlorophyll. c.) both chlorophyll and chloroplasts are found in animals. d.) both chlorophyll and chloroplasts make carbon dioxide.

Babies with very low or very high birth weight are less likely to survive. observe a graph of the data.