Question

commensal
competition
consumer
cross - link
d decomposer
e ecology
ecosystem
energy
f food chain
food web
i intermolecular force
m matter

Explanation:

Each term is defined based on standard biological and chemical scientific definitions:

1. commensal: A symbiotic relationship where one organism benefits and the other is unaffected.
2. competition: Interaction where organisms fight for shared limited resources.
3. consumer: Organism that eats other organisms for energy (not a producer).
4. cross-link: A bond connecting separate polymer chains in a molecule.
5. decomposer: Organism that breaks down dead organic matter.
6. ecology: Study of interactions between organisms and their environment.
7. ecosystem: A community of organisms plus its non-living environment.
8. energy: The capacity to do work or cause change.
9. food chain: Linear sequence of organisms where each eats the previous.
10. food web: Interconnected network of multiple food chains in an ecosystem.
11. intermolecular force: Force of attraction between separate molecules.
12. matter: Any substance that has mass and occupies space.

Answer:

1. commensal: A symbiotic relationship where one organism benefits while the other neither benefits nor is harmed
2. competition: An interaction between organisms or species where both are harmed as they compete for limited resources
3. consumer: An organism that obtains energy by feeding on other organisms or their products
4. cross-link: A chemical bond that connects two separate polymer chains in a macromolecule
5. decomposer: An organism that breaks down dead or decaying organic matter, recycling nutrients back into the ecosystem
6. ecology: The scientific study of interactions between living organisms and their physical environment
7. ecosystem: A biological community of interacting organisms and their physical, non-living environment
8. energy: The capacity to do work or bring about a change in matter
9. food chain: A linear sequence of organisms where each is eaten by the next, showing energy transfer
10. food web: A complex, interconnected network of multiple food chains in an ecosystem
11. intermolecular force: A force of attraction or repulsion that acts between neighboring molecules
12. matter: Any substance that has mass and occupies space