Sam enjoys looking at the stars through his telescope he learns that start were originally clouds made of dust and gasses which statement best describes how these clouse eventually become stars A. The clouds eventually collapse the force of gravity

B. The clouds increase in temperature until they eventually form a solid

C. The clouds contain particles that are magnetically attracted to each other

D. The clouds begin to cool and fort from masses of ice that eventually fuse together

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 controls activities within a eukaryotic cell?

14. which of the following codons code for threonine? a. ucg b. ugu c. cga d. aca