D. hormones would be the correct answer, which are chemical substances produced by gakbdd
Answer: The producers refers to green plants that carry out the process of photosynthesis in order to produce food for themselves and others. The principal function of producers is to manufacture food for themselves and all other living organisms.
The consumers refers to those living organisms that can not produce their own food and have to depend on the food produce by others. Consumers can be categorized into primary, secondary and tertiary consumers depending on where they are located on the trophic levels. They can also be classified as herbivores, carnivores and omnivores depending on the type of food they eat. The major function of consumers is transference of energy. Consumers transfer the energy they obtain from the food they eat to those animals that feed on them.
The decomposers are those micro organisms that are majorly found in soils.The principal function of decomposers is to break down dead organic matters so that they can be absorbed by the roots of plants. The broken down organic substances serve as nutrients, which the plants used to grow and develop.
These three types of organisms work together in the ecosystem to maintain the balance of the ecosystem.
A symbiotic relationship in which one organism can take
advantage and the other is not harmed The treehopper-ant mutualism becomes
parasitic in years when spiders are rare, because the treehoppers no longer
derive a large benefit but pay a fitness cost.
1 .insecta
2.arachnida
3. bryophyta
4. mollusca
5. mammalia
6. aves
<u>Explanation:</u>
six legs and three body parts- insecta
2.eight legs and two body parts- arachnida
3. non-vascular and reproduces by spores- bryophyta
4. soft bodies with hard shells- mollusca
5. give birth to live young ones- mammalia
6. lays eggs on land and flies- aves
