Which makes viral infections difficult to defeat? • A. Macrophages work slowly.
• B. Viruses live outside of cells.
• C. The immune system must attack the body's own cells.
• D. Viruses are attacked by nonspecific immune responsb
SUBMIT

Match the types of competition to their descriptions.

Ayoung boy has been found and police are trying to locate his family they take a dna sample from him and begin collec dna samples from families who have missing children if police use dna samples only from the fathers, which type of dn technology can they use to identify the boy's parent? y-chromosome analysis omtdna (mitochondrial dna) analysis vntrs (variable tandem repeats) o pcr (polymerase chain reaction) analysis

Aplant may open end close its stomata to prevent excess water loss and maintain