BIO101L Lab 3 – Ecology of Organisms

Lab 3 Ecology of Organisms BIO101L

Student Name: Click here to enter text.
Access Code (located on the lid of your lab kit): AC-I

Pre-Lab Questions

1. Would you expect endangered species to be more frequently generalists or specialists? Explain
your answer.

I would expect endangered species to be likely a specialist. They would need to have a
specific diet and area where they inhabit.

2. How does temperature affect water availability in an ecosystem?

Mild climate areas normally have plenty of rainfall. Hot desert climates have very little
rainfall and normally only one month of the year. Water evaporates quickly in hot
temperatures and plants and animals and humans compete to use the little water available.

Experiment 1: Effects of pH on Radish Seed Germination
Table 1
Water Vinegar Baking Soda
pH Green 7 Orange 4 Green 9
Seeds Seeds Seeds
Da
Germinate Observations Germinate Observations Germinate Observations
y
d d d
Seeds are as Seeds are as Seeds are as
1 Zero Zero Zero
placed placed placed
3 seeds Cracked
2 have seed with Zero No change Zero No change
sprouted white root
Cracked
8 seeds
seed with
3 have Zero No change Zero No change
white fuzzy
sprouted
roots
Small green
9 seeds
first leaves
4 have Zero No change Zero No change
are
sprouted
appearing
9 seeds Stems and
5 have white roots Zero No Change Zero No change
sprouted are longer
6 9 seeds 3 have 1” Zero No change Zero No change
sprouted stems. 2




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