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- Multiple ChoicePlease save your changes before editing any questions.
The first line of defense in the immune system is made up of
white blood cells.
skin and mucus.
antibodies.
red blood cells.
- Multiple ChoicePlease save your changes before editing any questions.
If an invader gets past the first line of defense, what happens next?
Nothing. You are infected and sick.
Big white blood cells eat and destroy invaders.
Antibodies are released to lock onto invaders.
Platelets stop the invaders.
- Multiple ChoicePlease save your changes before editing any questions.
What does your immune system make to lock onto invaders and mark them for destruction?
Antibodies
White blood cells
Bacteria
Plasma
- Multiple ChoicePlease save your changes before editing any questions.
What is made of only one cell and does not have a nucleus?
Viruses
Animals
Protists
Bacteria
- Multiple ChoicePlease save your changes before editing any questions.
Viruses are like living things because they
are made of cells.
can eat and use energy.
have DNA or RNA.
grow on their own.
- Multiple ChoicePlease save your changes before editing any questions.
Which type of living thing can reproduce by doubling DNA and splitting into 2?
Bacteria
Viruses
Plants
Animals
- Multiple ChoicePlease save your changes before editing any questions.
How do viruses reproduce?
Doubling and splitting into two. Asexually.
Sexually with 2 parents.
Regeneration of viruses.
Take over host cell and force it to make new viruses.
- Multiple ChoicePlease save your changes before editing any questions.
How can you prevent the spread of viruses and bacteria?
Wash your hands.
Get appropriate vaccinations.
Cover coughs and sneezes.
All of the above.
- Multiple ChoicePlease save your changes before editing any questions.
COVID 19, influenza, polio and yellow fever are all examples of
bacteria.
protists.
viruses.
plants.
- Multiple ChoicePlease save your changes before editing any questions.
Strep throat, tuberculosis, typhoid and bubonic plague are all examples of
bacteria.
protists.
animals.
viruses.