<span>The correct answer is A, B and D. Biogeochemical cycles are central to the ecology of earth system. They make the essentail elements accessible and available for the organisms, and maintain their levels, so that the ecology is ot disrupted. The elements move through abiotic and biotic factors, in these cycles, and a state of equilibrium is maintained n the ecosystem. The carbon dioxide levels are responsible fr the temperature of the earth. If Carbon cycles would not have existed, then there would have been a disruption in maintaining the global temperature. Biogeochemical cycles basically continuously recycles the essential materials, for sustaining the life-forms.</span>
Answer:
Swim bladder
Explanation:
Swim bladder is an organ in bony fishes such as catfish that controls their buoyancy. It is also known as air bladder. The swim bladder contains gas, mainly oxygen and functions as a hydrostatic organ.
As the fish moves in deeper water, the gas in the swim bladder is contracted which decreases the volume of swim bladder.
The outer skeleton provides protection due to the fact that invertebrates do not have backbones
1. Mattias Schleiden
2. Robert Hooke
3. Microscope
4. Cell membrane
5. Nucleus
6. Nuclei
7. Nuclear membrane
8. Endoplasmic Reticulum
9. Ribosomes
10. Endoplasmic Reticulum
11. Lysosome
12. Vacuole
13. The Cell Wall- provides the plant structure
Chloroplasts- preform photosynthesis
Larger Vacuole- holds excess water for the plant to use later
