Question

it’s alive or is it? definitions
use the internet to define the following terms:

1. dichotomous key:
2. metabolism:
3. aerobic:
4. anaerobic:
5. cell:
6. energy:
7. evolution:
8. adaptation:
9. abiotic:
10. biotic:
11. homeostasis:

Explanation:

These terms relate to Biology (a subfield of Natural Science). Here are concise definitions:

1. Dichotomous Key: Tool with paired statements to identify organisms.
2. Metabolism: Chemical reactions in a cell/organism for life.
3. Aerobic: Requiring oxygen (e.g., aerobic respiration).
4. Anaerobic: Without oxygen (e.g., anaerobic bacteria).
5. Cell: Basic structural/functional unit of life.
6. Energy: Capacity to do work (e.g., ATP in cells).
7. Evolution: Change in species over generations (natural selection).
8. Adaptation: Trait aiding survival/reproduction in an environment.
9. Abiotic: Non - living (e.g., water, rocks in an ecosystem).
10. Biotic: Living or once - living (e.g., plants, animals).
11. Homeostasis: Maintenance of stable internal conditions (e.g., body temperature).

Answer:

1. Dichotomous Key: A tool with paired descriptive statements to identify organisms.
2. Metabolism: The sum of chemical reactions in a cell/organism for survival.
3. Aerobic: Processes (like respiration) requiring oxygen.
4. Anaerobic: Processes (like some bacteria's respiration) without oxygen.
5. Cell: The basic unit of life, structural and functional.
6. Energy: The ability to do work, e.g., ATP for cellular processes.
7. Evolution: Change in species' heritable traits over generations via natural selection.
8. Adaptation: A trait that helps an organism survive/reproduce in its environment.
9. Abiotic: Non - living components of an ecosystem (e.g., sunlight, soil).
10. Biotic: Living or once - living components of an ecosystem (e.g., plants, animals).
11. Homeostasis: The ability of an organism to maintain stable internal conditions (e.g., pH, temperature).