How much time passes between fertilization in the first division of zygote?

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.

Which of the following is the best description of health protecion the answer is b the direct actions taken by health organizations to improve public health

Which effect is most likely to result from parents who do not set appropriate limits or boundaries on children? more stability less depression more teamwork less self-control