Answer:
The correct answer will be-
1 .Arbovirus is an arthropod-borne virus
2. An arbovirus is maintained in nature through biological transmission
Explanation:
An arbovirus is a group of the virus which spreads in nature especially infect human from the infected insects (Arthropods). The most common arthropods spreading the disease caused by the virus is the mosquitoes and few ticks, gnats and fleas.
The viruses are maintained in nature through biological transmission between the vertebrate hosts by blood-sucking arthropods like mosquitoes.
Thus, the selected options are correct.

Should ever come back...Should ever come back....
The answer is LH only.
Luteinising hormone promotes the release of an egg
from an ovary during ovulation. Follicle Stimulating Hormone, on the other hand, stimulates
the maturation of ovarian follicles. When its levels
drop and LH surge, ovulation of a mature
egg from the mature follicle occurs.
This would make it hard for a person to digest their food because enzymes are used to help speed up the process of its specific job
Scaled reptiles are the largest group of living reptiles.