Answer:
overreacts to an antigen
Explanation:
Allergies to substances are as a result of immunological dysfunction.
Answer: The main cause of the extinctions is the destruction of natural habitats by human activities, such as cutting down forests and converting land into fields for farming. Due to human activities, populations of many species have become small and isolated.
Explanation:
I believe the answer to this is substitution <span />
The correct answer is birth.
At birth, females infants on an average appear to have a more developed central nervous systems compared to males. This is apparent because female infants shower higher levels of responsiveness to stimuli such as sounds, touch and faces. Additionally, female infants typically acquire linguistic abilities and vocalize earlier than male infants.
