Across
- 2. chemical messengers in the bloodstream
- 3. a substance that grows in lakes that is usually green or red
- 6. a sudden reaction to a stimuli that doesn't use the brain
- 10. someone who studies and monitors ecosystems and their interactions
- 12. energy being released from an object or particle
- 14. immunised to a certain pathogen
- 15. little clues for the immune system to create antibodies
- 16. ailment when the body loses homeostasis and becomes too cold
- 20. when light waves are filtered by the direction of their oscillation
- 21. how the neuron outputs it's signal
- 22. a group of biotic and abiotic objects that work in synchrony to maintain an environment
- 23. a type of tissue that provides force in the body
- 24. where a neuron recieves a signal from
- 25. a small building block of organic life made of proteins and fats
Down
- 1. the body maintaining a constant glucose level
- 4. algal blooms
- 5. cells that make up the CNS
- 7. the breaking down of food for use in the body
- 8. a substance usually found in fertiliser that is related to nitrogen
- 9. the gap between neurons in a nerve
- 11. waves made of protons
- 13. the body maintaining the same temperature as part of homeostasis
- 15. a hormone secreted by the adrenal gland
- 16. the maintenance of a constant bodily environment
- 17. a measurement of air pressure used in hearing
- 18. an organ that secretes hormones
- 19. important organ in your upper half