Viruses have to infect a living cell in order to reproduce. true or false.

Select all the true statements about the cosmic microwave background radiation

Asea turtle has washed up on a remote section of a beach. this known as a stranding occurs when a dead, sick or injured sea turtle washed up on the shoreline. which statment best explain why stranding should be reported immediately to local authorities

Why are current extinctions of concern to enviromentalists?