Yes
Red blood cells have no nucleus after they have fully developed. The nucleus is ejected so that there is more room for hemoglobin. That molecule is what carries oxygen.Because there is no nucleus the cell can not repair itself and will die in about 120 days. It's parts will then be recycled.
but
These cells do not contain chlorophyll
White blood cells are normal parts of the human body. They are neither viruses nor bacteria.
True
Red blood cells have no nucleus after they have fully developed. The nucleus is ejected so that there is more room for hemoglobin. That molecule is what carries oxygen.Because there is no nucleus the cell can not repair itself and will die in about 120 days. It's parts will then be recycled.
No they do not
Yep, atoms contain electrons, protons and neutron. Each of them contains other parts that are even smaller, I think we learnt these parts are 1-dimensional oo
An active virus, like all viruses has to "hijack" a host cell's DNA and then that DNA makes virus parts instead of cell parts. When the cell is full of the virus parts, it ruptures and dies. The viruses find other cells and repeat the cycle.
but
Some viruses can move parts of their body, but most viruses rely on their hosts.
Viruses are not alive. They are infectious particles. They hijack a living cell's DNA and force it to make viruses parts instead of living cell parts. The cell is made to assemble to parts and the new viruses bust out of the cell, killing it, and infect more cells.
These cells do not contain chlorophyll
Viruses are composed of two main parts: an outer protein covering called a capsid and an inside core of either DNA or RNA. Not both DNA and RNA. Living cells also contain DNA and RNA. These are the only thing shared by living cells and viruses.
Infectious diseases are caused by micro-organisms such as bacteria, fungi and viruses that have the ability to reproduce and spread to other parts of the body or to other hosts (people) and cause harm to the host by preventing parts of the body from performing necessary functions.
nope only bacteria
What are vaccines for influenza made from?parts or products of a virusdead, whole virusesantibodies to the virusweakened viruses