Which of the following fundamental forces is the weakest? (4 points) Electromagnetic
Gravity
Strong nuclear
Weak nuclear

Which is the layer underground where all empty spaces are filled with a combination of air and water ?

Which characteristic of water it form droplets? a. low specific heat b. nonpolar structure c. high surface tension d. ability to dissolve substances

7. in the cycle, a virus integrates its dna into the host's dna, and its dna is replicated when the host dna is replicated. a. infectious b. retroviral c. lysogenic d.lytic