are over 500 million years old and have been developing their unique system all that time. Question 1 options:

Fish

Octopi

Snails

Jellyfish

please help fast timed

Does nicotine show up in a drug test when u pee in the cup

Saved if you often notice flakes of dead skin on your shirt, you may have dandruff. if so,

What is the main structural difference between enveloped and nonenveloped viruses? a) enveloped viruses have their genetic material enclosed by a layer made only of protein.b) nonenveloped viruses have only a phospholipid membrane, while enveloped viruses have two membranes, the other one being a protein capsid.c) enveloped viruses have a phospholipid membrane outside their capsid, whereas nonenveloped viruses do not have a phospholipid membrane.d) both types of viruses have a capsid and phospholipid membrane; but in the nonenveloped virus the genetic material is between these two membranes, while in the enveloped virus the genetic material is inside both membranes.