It's a ! cnidocytes help in defence and also in capturing prey ! so answer is A !!
The conclusion that Torri produced is supported by evidence since she did not switch her dependent variable, giving the mouse a fair advantage of learning which knob to touch
Explanation:
B. to break down food so that it can be used by the body
Hey there!
The correct answer to your question is option B.
Nitrogen is essential to life because it is the molecule around which all the molecules of life are built, meaning it is the molecule that is most needed and is one of the most important ones.
Hope this helps you.
Have a great day!