Nucleus is positively charged because it has protons and neutrons.
Now protons are positively charged and neutrons do not have charges so in average nucleus is positively charged
Answer:
parasitism,
Explanation:
parasitism, relationship between two species of plants or animals in which one benefits at the expense of the other, sometimes without killing the host organism.
Answer:
1. Partially Permeable Cell Membrane
2. Water/Carbon Dioxide/Oxygen/Lipids/Bacteria
3. raw materials for respiration/waste/photosynthesis
Explanation:
Hope this helps and good luck on your studies! :)
They are called: The Lymph nodes, spleen, and the thymus glands are collectively.
I hope that helps