True. 100% true. Pollution is bad, and living things - even humans - can be effected in it in a negative way, so it's true
Each human has 2 alleles and are called diploid organisms. We receive 1 allele from each biological parent.
It would be completely false to say that both internal and external environments can modify or alter a gene. The correct option among the two options that are given in the question is the second option or the last option. I hope that this answer has come to your great help.
Answer:
could be A, I might be wrong
Explanation:
the other involuntary actions doesn't sound automatic
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.