Question

1. which level of organization does this image represent?

a. population
b. community
c. biome
d. ecosystem

1. \if i give plant a 30ml of water, plant b 20 ml of water, and plant c 10 ml of water, i think plant b will grow the fastest and have more leaves than plants a and c.\

this statement is best classified as a/an _.
a. observation
b. hypothesis
c. theory
d. conclusion

1. think back to the growing plants gizmo. is more water always better for plants?

a. yes
b. no

1. according to our results in the growing plants gizmo, was it always best to give plants the maximum amount of light possible?

a. yes
b. no

Explanation:

• Question 16: An ecosystem includes all the living organisms (like the fish in the image) and the non - living components (like the water, rocks) in a particular area. A population is a group of the same species, a community is all the living species in an area (excluding non - living), and a biome is a large geographical area with similar climate and ecosystems.
• Question 17: A hypothesis is an educated guess or prediction about what will happen in an experiment. Here, the statement is predicting how the plants will grow based on the amount of water, which is a hypothesis. An observation is just noting what is seen, a theory is a well - tested explanation, and a conclusion is the result after testing.
• Question 18: Too much water can drown plants (cause root rot as roots need oxygen which is displaced by excessive water), so more water is not always better.
• Question 19: Excessive light can damage plant cells (e.g., through photo - oxidation), so it is not always best to give the maximum amount of light.

Answer:

1. d. ecosystem
2. b. hypothesis
3. b. No
4. b. No