What makes viruses, such as the common cold, difficult to cure? 1 sentence

5 answers

Viruses like the common cold are difficult to cure because they rapidly mutate, have a high diversity of strains, and rely on the host's cellular machinery for replication, making targeted treatments challenging.

What are the similarities and differences between viruses and bacteria? Is a virus a living thing? Why or why not? 1 sentence

Viruses and bacteria both can cause disease, but bacteria are single-celled organisms that can reproduce independently and carry out metabolic processes, while viruses are acellular entities that require a host cell to replicate, leading many to classify viruses as non-living because they lack the characteristics of life outside a host.

Be able to describe the structures and functions of these systems and how they work together: Name at least One structure for each System
(For example Digestive System Structure -Intestines, Stomach)Function: to digest and break down food particles to be used for energy

Nervous system:
Structures:______________
Function:______________
Circulatory system:
Structures:______________
Function:______________
Respiratory system:
Structures:______________
Function:______________
Muscular system:
Structures:______________
Function:______________

1 sentence

Nervous System: Structure: Brain; Function: Coordinates and processes sensory information, controls body responses, and maintains homeostasis.
Circulatory System: Structure: Heart; Function: Pumps blood throughout the body to deliver oxygen and nutrients while removing waste products.
Respiratory System: Structure: Lungs; Function: Facilitates the exchange of oxygen and carbon dioxide between the body and the environment.
Muscular System: Structure: Skeletal muscles; Function: Enables movement of the body by contracting and relaxing in response to nervous system signals.