Use the food chain below to answer the questions.

dandelion → caterpillar → frog → snake → owl

1. choose two organisms from this food chain and predict what would happen to the other
organisms if those organisms were removed from the food chain.

2. sketch the inside of the bean nodule, and describe or label what you observed with the hand lens.

What molecules will be best used to compare different species with the exact same sequence of amino acids? why would two species have the same protein even if the molecules in question is different? (hint: transcription to translation to protein).

Which member of the following food chain will be least affected by ddt, a pesticide water pollutant, if bio-magnification is occurring? algae> zooplankton> crayfish> leopard frog> large mouth bass