Question

What are the appropriate definitions for the following terms?
animal husbandry
artificial selection
invasive species
selective breeding

Answer 1

- Animal husbandry: The care, management and breeding of domesticated animals for human purposes (food, fiber, work, companionship). It includes feeding, housing, health care, welfare, breeding decisions and husbandry practices that influence productivity and well‑being.

- Artificial selection: Change in the frequency of heritable traits in a population caused by human choice rather than by natural environmental pressures. Humans favor (intentionally or unintentionally) individuals with particular traits, so those traits become more common over generations.

- Invasive species: A non‑native (introduced) organism that becomes established in a new area, spreads, and causes or is likely to cause ecological, economic or human‑health harm to the invaded region.

- Selective breeding: A deliberate form of artificial selection in which humans choose which animals or plants will mate in order to enhance or fix desired traits in future generations (e.g., breeding dogs for temperament, crops for yield).