A, b, c are non-coplanar vectors. Prove that the following four points are coplanar. (i)-a + 4b - 3, 3a + 2b - 5c. - 3a + 8b - 5c, -3a + 2b + c
(ii) 6a + 2b - c, 2a - b + 3c, - a + 2b - 4c, -12a - b - 3c​

From the list below, choose all the correct statements about the functions of fat. select all that apply. select all that apply. fat provides flavor and texture to food (think ice cream) and also leaves you satisfied for longer after a meal. fat in the diet allows for the transport of vitamins a, c, and e because they are fat-soluble. lipids are an essential component of cell membranes, act as insulation under the skin, and protect organs from injury. the body can rely on carbohydrate stores during periods of low energy intake. fat is a good source of energy providing 4 kcal/g.

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 practice is harmful to the land? a. using animal waste as fertilizer b. composting with peels from commercial fruit c. throwing paint cans in the garbage d. cutting the lawn with a gas-powered mower