Baby chicks are pecking at grains of cracked corn of different colors. A researcher is attempting to determine if they prefer one color over
another. He counts the number of grains chosen in an arena that has
equal numbers of red, blue, green and yellow corn chunks. The
expected number here is 235. Here are his results:
red: 250 blue: 220
green: 230
yellow: 240
Perform a Chi Square analysis on these results. Don't forget to find the
degrees of freedom. Make sure to show your work to get full credit.

Use this dichotomous key for insect identification to identify the insect shown. 1. a. insect has one pair of wings. order diptera b. insect has two pairs of wings. go to #2 2. a. front wings thicker in texture than hind wings go to #3. b. front and hind wings are same texture throughout. go to #4 3. a. front wings are short order dermaptera b. front wings cover entire abdomen order coleoptera 4. a. wings with scale on all parts of their area. order lepidoptera b. wings without scales go to #5. 5. a. hind wings smaller than front wings. order ephemeroptera b. front and hind wings nearly equal in size. order odonata the insect pictured is in the order diptera. ephemeroptera. coleoptera. odonata.

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).

Amines amides and amino acids are categories of