Population, Photosynthesis

2. An organism that makes its own food, usually through photosynthesis (plants, algae) or chemosynthesis (some bacteria).
5. a close and long-term biological interaction between two different species.
9. A biological sonar used by some animals (like bats and toothed whales). They emit sound waves and listen to the echoes that bounce back from objects.
10. The primary energy carrier in cells. Stores energy in its phosphate bonds, which can be released to power cellular processes like muscle contraction, nerve signaling, and biosynthesis
12. uses the energy in sunlight to make their own food.
13. The role or function of an organism in its environment.
14. A population growth pattern where the rate of increase becomes faster as the population gets larger.
16. saclike photosynthetic membranes that contain chlorophyll and other pigments and are arranged in stacks called grana
17. A group of organisms that can interbreed and produce fertile offspring.
19. Tiny drifting animals in aquatic ecosystems. Include protozoans, small crustaceans, and larval stages of larger animals.
20. Anything an organism needs to survive, grow, and reproduce. Includes food, water, shelter, space, and mates.
21. the maximum number of individuals of a species that an environment can support sustainably.

1. the principal pigment in photosynthetic organisms. Chlorophyll absorbs blue-violet and red light but reflects green light
3. A community of living organisms (plants, animals, microbes) interacting with each other and with their physical environment (soil, water, air).
4. Organelles that convert energy from food (glucose, fatty acids) into ATP through cellular respiration.
6. A species that has a disproportionately large impact on its ecosystem relative to its abundance.
7. An organism that hunts, kills, and eats other organisms (prey).
8. the process that uses light energy and carbon dioxide to produce food molecules.
10. The proportion of individuals of different ages within a population. Helps ecologists predict growth trends, reproductive potential, and survival rates.
11. In a plant cell, the fluid portion outside of the thylakoid
15. Large whales that filter-feed using baleen plates (made of keratin) instead of teeth.
18. organism that gets food by consuming (eating) other organisms or nutrients.