In house sparrows (passer domesticus) it is generally found that both males and females care for the eggs and young. however, some male house sparrows do not provide parental care. in addition, it is known that young that receive parental care from both the male and female are more likely to survive to fledging (leaving the nest). which of the following activities by males that do not provide parental care would represent the most beneficial trade-off for the reduced survival of their offspring? a) attacking the nests of neighboring malesb) mating with additional females and fathering more eggsc) eating to build up energy stores for migrationd) grooming to eliminate parasites from their feathers

Option B

Explanation:

The male sparrow does not takes care of the baby sparrow. Such kind of baby sparrow's has very less chances of survival and fledging. They die before this stage due to lack of parental care.

Generally the female sparrow takes care of the baby sparrow and the males fly away. They get involved in mating with the other female sparrow and fathering  more eggs.

Hence, the correct answer is option B.

answer; ///i believe that the correct answer is (e); check first good

the cytokine-activated janus kinase (jak)-signal transducer and activator of transcription (stat) pathway has an important role in the control of immune responses. dysregulation of jak-stat signaling is associated with various immune disorders.