I<span>nterneurons which are responsible for connecting one neuron to another. </span>
<span>Schwann cells are a type of glial cell that are found in the peripheral system but function similarly to Oligodendrocytes which are found in the CNS. Motor neurons carry signals from the CNS to the target or effector organ i.e. muscle or skin, while Sensory neurons carry sensory messages from receptors to the CNS. The former typically have short dendrites to receive input and long axons to carry impulses while the latter tends to have longer dendrites and shorter axons.
Hope this helps you </span>
Answer:
Independent: amounts of oil
Dependent: amounts of popped kernels
Controlled variables: Kernel brand, cooking time, popping time
Explanation:
Independent variables are what are changed in the experiment. The dependent variables depend on the independent so they are what is affected each time. Usually this is what is being tested for. Controlled variables are those that aren't being tested and are kept the same each time to make sure it doesn't change the outcome.
Cell - Different cells make up organs
Cell Membrane - Protect the cell
Cytoplasm - Contains all organelles and cell parts
Nucleus - Contains the cell's genetic material
Nuclear Membrane - Allows small molecules, ions, and/or proteins to move in and out of the necleus
Ribosomes - Where RNA is translated to protein
Endoplasmic Reticulum - A manufacturing or packing system for the cell
Golgi Bodies - Gathers simple molecules and combines them to be more complex
Mitochondria - Energy factories of the cell (Side note: Always remember "Mitochondria is the powerhouse of the cell")
Lysosomes - Digest excess or worn organelles, food particles, and viruses or bacterias
Answer: The NEGATIVE CONTROl is the test tube that is filled with ONLY distilled water.
Explanation:
A negative control of an experiment is carried out alongside the main primary experiment except that the treatment is changed to something that is predicted to have no result. In the negative control, the student does not expect any response. This would help the student compare the result of a new experiment against an already known existing results.
Analysing the experiment carried out by the student, She filled two test tubes with distilled water and placed a piece of Elodea in one of the tubes, leaving the other without a plant. The other test tube that contains only distilled water is the negative control because she wasn't expecting any result from it. It's also served as a control sample to the primary experiment. This is observed as she blew in each tube to add carbon dioxide, which caused the distilled water to become more acidic. This would help the student know that the that experimental results are valid and to ensure that time is saved.
An observation may generate a scientific question, which may lead to a hypothesis. The hypothesis can be tested the experimentation. The results of experimentation lead to changes in scientific knowledge.