It's some change in the conditions around the organism, which the organism can detect and respond to. A change in temperature, more light, or something physically poking the organism are examples.
Answer:
a blood protein
Explanation:
a blood protein produced in response to and counteracting a specific antigen. Antibodies combine chemically with substances which the body recognizes as alien, such as bacteria, viruses, and foreign substances in the blood.
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Answer:
Stage 4: Law and order orientation
Explanation:
The individual now takes into consideration a larger perspective, that of societal laws. Moral decision making becomes more than consideration of close ties to others. The individual believes that rules and laws maintain social order that is worth preserving.
They may want an organism of a certain trait suits a pet or for household security. Therefore will breed the best of these lines for these specific traits. Humans may want a pet to be mild, furry, small, and cute. For security, humans will prefer fierce, big and tenacious traits in an organism.
