Lab 3 Ecology of BIO101
L
Organisms
Student Name:
Access Code (located on the lid of your lab kit):
Lab Report Format Expectations
Utilize college level grammar and professional formaṄng when completing this worksheet.
Pre-Lab Questions
1. Would you expect endangered species to be more frequently generalists or
specialists? Explain your answer.
Endangered species are usually specialists. This is because they depend on very
specific habitats or food sources. If these specific needs aren’t met, they struggle to
survive, unlike generalists that can use many types of resources.
2. How does temperature affect water availability in an ecosystem?
Temperature changes water’s state. When it is very cold (below 0°C), water freezes
and is not available for most living things. When it is warm but below 100°C, water
stays liquid and can be used. If it gets very hot (above 100°C), water turns to steam
and is lost from the system.
EXPERIMENT 1: EFFECTS OF pH ON RADISH SEED GERMINATION
Introduction Questions
1. What is the objective of this experiment?
The goal is to see how different pH levels—acidic, neutral, and alkaline—affect the
way radish seeds start to grow.
2. Record your hypothesis from Step 6 here:
I predict that radish seeds in water (neutral pH) will sprout faster than those in
vinegar (acidic) or baking soda (alkaline) solutions.
3. What are the controls needed in this experiment?
The control is the treatment with water. This helps us compare normal growth with
the changes seen in acidic or alkaline conditions.
4. Why did you use 10 seeds in each treatment?
Using 10 seeds in each group gives us a good sample size. It makes the results more
reliable because it reduces the chance that random differences will change the
outcome.
5. Why is step 7 in the lab important?
Step 7 is important because it lets us see the final results of the seed growth. It helps
, Lab 3 Ecology of BIO101
L
Organisms
us confirm what happened over the week and check the overall effect of pH on the
seeds.
L
Organisms
Student Name:
Access Code (located on the lid of your lab kit):
Lab Report Format Expectations
Utilize college level grammar and professional formaṄng when completing this worksheet.
Pre-Lab Questions
1. Would you expect endangered species to be more frequently generalists or
specialists? Explain your answer.
Endangered species are usually specialists. This is because they depend on very
specific habitats or food sources. If these specific needs aren’t met, they struggle to
survive, unlike generalists that can use many types of resources.
2. How does temperature affect water availability in an ecosystem?
Temperature changes water’s state. When it is very cold (below 0°C), water freezes
and is not available for most living things. When it is warm but below 100°C, water
stays liquid and can be used. If it gets very hot (above 100°C), water turns to steam
and is lost from the system.
EXPERIMENT 1: EFFECTS OF pH ON RADISH SEED GERMINATION
Introduction Questions
1. What is the objective of this experiment?
The goal is to see how different pH levels—acidic, neutral, and alkaline—affect the
way radish seeds start to grow.
2. Record your hypothesis from Step 6 here:
I predict that radish seeds in water (neutral pH) will sprout faster than those in
vinegar (acidic) or baking soda (alkaline) solutions.
3. What are the controls needed in this experiment?
The control is the treatment with water. This helps us compare normal growth with
the changes seen in acidic or alkaline conditions.
4. Why did you use 10 seeds in each treatment?
Using 10 seeds in each group gives us a good sample size. It makes the results more
reliable because it reduces the chance that random differences will change the
outcome.
5. Why is step 7 in the lab important?
Step 7 is important because it lets us see the final results of the seed growth. It helps
, Lab 3 Ecology of BIO101
L
Organisms
us confirm what happened over the week and check the overall effect of pH on the
seeds.
