Understanding Viruses and Their Impact

What is a unique characteristic of viruses compared to living cells?

• They can reproduce independently.

• They are considered living organisms.

• They are larger than animal cells.

• They use host cells to replicate.

How is the measles virus primarily spread?

• Through direct contact with infected surfaces.

• Through contaminated water.

• By droplets from coughs or sneezes.

• Via insect bites.

What does HIV stand for?

• Human Immunity Virus

• Human Immunodeficiency Virus

• Human Immuno Virus

• Human Immune Virus

What is a consequence of the tobacco mosaic virus on plants?

• It causes a mosaic pattern on leaves.

• It makes plants resistant to pests.

• It increases sugar production.

• It enhances photosynthesis.

Why is photosynthesis disrupted in plants affected by the tobacco mosaic virus?

• The virus alters the plant's DNA.

• The virus blocks sunlight.

• The virus consumes the plant's nutrients.

• Discolored patches on leaves prevent photosynthesis.