Answer:
The correct answer is option - a surface protein allowing the pathogen to bind to host cells
Explanation:
Virulence factors are substances or molecules released by pathogens such as bacteria, fungi, viruses and protozoa that enhance their function effectiveness and enable them to get the following-
Attachment to host cell and surface.
Evasion of the immune response of the host.
Suppression or inhibition of the immune response of host.
Getting nutrition from the host cells
Thus, the correct answer is option - a surface protein allowing the pathogen to bind to host cells.
Answer:
The correct answer will be- formation of membrane
Explanation:
The three-stage origin of life theory suggests that life on Earth originated in three phases which are:
1. Phase I: The larger molecules formation began during this unsuitable earthly conditions full of volcanic eruptions and harmful gases underwater.
2. Phase II: The self-replicating molecule begins to form during this phase which contained the coding of life. The self-replicating molecule is known as the formation of the membrane.
3.Phase III: The formation of the membrane which help separate the outer environment from the inner environment was observed during this phase.
Thus, the formation of a membrane is the correct answer.
The opportunistic has a longer lifespan than the equilibrium populations
