Not all chemicals normally present in living ______ are harmless.
A: therapies
B: ordinances
C: organisms
D: orientations
A: therapies
B: ordinances
C: organisms
D: orientations
举一反三
- An example of a community is: A: One giant kelp individual B: A kelp forest plus all of the physical factors affecting it C: All physical factors affecting a kelp forest D: A kelp forest plus all organisms living in it
- Living organisms contain more water _________ substance.
- _______ looked up in alarm. A: All the present women B: All the women present C: The all women present D: The all present women
- Nitrogen and oxygen are ___ important ___ most living organisms cannot survive without these elements.
- The headmaster required that all the teachers ______ at the meeting. A: present B: must be present C: be present D: would be present