Which factor most influences the survival of a population in an ecosystem? A.
phenotype

B.
lifestyle choices

C.
genetic variation

D.
selective breeding

Which disease is caused by a buildup of plaque in blood ves

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.

You have planned a menu for an 8-year-old boy. it consists of a roast chicken sandwich, fruits, and milk. which nutrient have you missed? a. protein b. vegetables c. dairy d. grains