Your sister is sick . she drinks tea, you take a sip from her cup ,her germs are entering your body . what type of response will the immune system give? a. non-specific b. specific

During the first month of development, how many layers of cells make up the embryo? a. 1 b. 2 c. 3 d. 4

Disaster preparedness procedures should include assembling educational and entertainment materials for children. specifying how information will be shared with families. storing one gallon of water for each person. evacuating immediately if it is safe to do so.

Mary is 14 year old her resting heart rate is 70 beats per minute. calculate 50% of mary's maximum heart rate to fine her target heart rate