Answer:
A virus attaches to a specific receptor site on the host cell membrane through attachment proteins in the capsid or via glycoproteins embedded in the viral envelope. The specificity of this interaction determines the host (and the cells within the host) that can be infected by a particular virus.
Explanation:
Forssoic science investigate department
1. Kinetic Energy is the energy of mass in motion. In a rescue mission, kinetic energy is the most used energy to carry out the rescue operation successfully.Anything that moves and has a role in rescuing the victims can be termed as the kinetic energy involved in rescue team missions
2. You may be saving someone from a rock slide, where the rocks will fall at any time, before they fall they have potential energy.
Neurons, nervous tissue, brain, central nervous system, human being
Answer:
1. A
2. A
3. i dont know
4. D
5. E
6. B
7. D
8. B
9. i think skin? i dont know
10. B
11. C
12. i dont know
13. A - i think
14. A
15. B
16.i dont know
17. A
18.D
19. D or C
20. C