Answer:
sympathetic nervous system
Explanation:
The sympathetic nervous system functions like a gas pedal in a car. It triggers the fight-or-flight response, providing the body with a burst of energy so that it can respond to perceived dangers.
"Water quality" may include the amounts of dissolved oxygen
and the levels of algal growth, pollutants which may be present and the pH level. Water quality effects also which types of organisms can
survive in a body of water.
Shellfish require a high level
of dissolved oxygen and their abundance is an indication of good water quality. Shellfish are sensitive to changes in the ecosystem and they cannot easily escape changes in the water quality. These are one of the reasons why shellfish are good indicators of water quality.
Answer:
Zwitterion
Explanation:
A Zwitterion is mostly molecules of Aminoacid that has both positive and negative end.
All living things have cells with DNA that contains genes which has genetic codes for all cell structures and determines which functions cells should perform to help the organism live.
I found a quizlet with that question on it if interested!
https://quizlet.com/90545525/ap-bio-chapter-1-evolution-the-themes-of-biology-and-scientific-inquiry-flash-cards/
4. The nucleus is like the brain of the cell; the control center; the core.
