B , spongy
Hope this helps! :)
Cells become specialised to carry out a specific role and then they become a group of tissues and the group of tissues work together become an organ and the a group of organs become 1 system
Here are the answers.
1. Runoff from the land in a <em>stream’s watershed</em>……….
2. And water from its <em>tributaries</em>.
3. At the stream’s headwaters, the <em>gradient</em>………..
4. The greater the water speed, the larger the <em>stream load</em>………..
5. Which is made up of: a) <em>suspended load</em>, b) <em>dissolved load</em>, c) <em>bed load</em>
6. Under these conditions a <em>braided stream</em> may form
7. Where gradient flattens, a <em>meander</em> may form
Answer:
An enzyme is a type of protein found within a cell. Enzymes create chemical reactions in the body. They actually speed up the rate of a chemical reaction to help support life.