Answer:
B.
Explanation:
The role of light in photosynthesis provides energy for sugar to be created!
Copied but correct answer.
Answer: C (She hasn't fastened the slide to the stage
Explanation:
In Microscopy even if the slide is not yet in focus,she will be able to see part of the slide which may appear as transparent image.Therefore this is a wrong answer.
If the microscope is not plugged it light can not come up.
If there are no specimen on the slide,the slide will still as transparent image at the focus.
No doubt Stella forgot to fasten the slide to the stage.,therefore the specimen on the slide was not in focus of the objective lens,rather she was focusing on the stage only,hence the visible white light.
Answer:
A.
Explanation:
When freshwater is met with the ocean salt is diluted to the freshwater. Therefore organism that require little salt would be put at a threat.