Answer:
my best answer is b due to logic if not then d
Explanation:
Opportunistic infections are infections that occur more frequently and are more severe in people with weakened immune systems, including people with HIV.
The body converts simple sugars into glucose
C)The two species cannot have viable offspring together.
An ecological niche can be defined as the functional role played by the organism or species in order to survive in it's habitat. Like the type of food consumed by the organism, type of mating mating season and others.
In the given situation, the thick beak birds likely to develop in a new species because of this typically adaptation. The two species may exhibit reproductive isolation as they may not be capable of inbreeding among themselves and cannot produce viable offspring together.
