1. Starfish can reproduce sexually and asexually... Five years after a mysterious virus wiped out millions of starfish off the western
coast of North America, causing them to lose legs, dissolve into fleshy goo and
taking various species to the brink of disappearance, scientists have announced a
remarkable reversal. In what the authors of a new study say may be an example
of evolution in action, a species appears to have evolved genetic resistance to a
virus decimating it. Almost all of the starfish died; however, a few remained.
A. Explain how some starfish were able to survive the spread of this
mysterious virus.

Alaska and northern canada have a diet rich in vitamin d and their skin color is darker than predicted on the basis of iv intensity at their latitude. explain the observation:

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.

Long-period comets come from the oort cloud particles in earth’s atmosphere material from the asteroid belt the kuiper belt