Immunization is brought about by:
Injecting medicine against the disease
Keeping personal hygiene
Keeping the surroundings clean
Injecting germs itself.
Guard cells help plants to
Photosynthesis
Respiration
Water regulation in cells
All the above
Bacteria was first observed by
Theodore schwann
Leeuwenhoek
Virchow
M.J Schleiden
The shape of red blood cells is
disc
amoeboid
cuboid
spherical
