False there may be two or more dependent variables in a well designed experiment
Mitochondria is the 'factory' or the 'powerhouse' of the cell! I've just been learning about them too!
Answer:
valence electrons
horizontal row on the periodic table
cation
anion
solid, ?
high
electricity
cation first, then anion
low
they do not conduct electricity
halogens
a representation or simulation for device structure, process equipment, or a management system ?
atom
protons and neutrons (and electrons?)
elements are arranged from left to right and top to bottom in order of increasing atomic number
Explanation:
Answer: B-cells fight bacteria and viruses by making y-shaped proteins called antibodies, which are specific to each pathogen and are able to lock onto the surface of an invading cell and mark it for destruction by other immune cells. C-cells are a virus-bound antibody that binds to receptors, on the surface of phagocytic cells and triggers a mechanism known as phagocytosis, by which the cell engulfs and destroys the virus.
Explanation: sorry this answer was not simple at all -_-
