According to the dichotomous key below, what are the distinguishing characteristics of a female mosquito of the genus culex? answer ( a. blunt abdomen tip; antennae and palps shorter than proboscis ) -apex

It is correct, the choice that you place in here.

According to the data I found on research, on this type of mosquito, the Culex, or Culicine, females do present a blunt abdomen tip, which is different from the Aedes and other types of mosquito, palpi that are much shorter, and less bushy than in males either of their own type, or another type, and antennae with shorter, fewer hairs in them. The antennae and palps are shorter than the proboscis, as well. Knowing these factors help scientists to recognize the female mosquitoes of the Culex subfamily, from other females and from males of the same family, as well.

So the answer choice A: Blunt abdomen tip; antennae and palps shorter than proboscis, is correct.

answer: zinc is the substance which has a volume of 1.38 .

density is defined as the mass of an object per unit volume.

it can be calculated by dividing mass of a substance by its volume i.e.

si unit of density is kg per cubic meter and cgs unit of the same is gram per cubic centimeter.

now from the given data volume can be calculated by the formula .

hence, the volume of aluminium will be = which comes out to be 1.703 .

similarly, volume of zinc, chromium, and nickel will be 1.378 , 0.869 , and 0.356 respectively.