The nurse is caring for a pregnant client who is undergoing an ultrasound examination during the first trimester. the nurse explains that an ultrasound during the first trimester is utilized in order to do what?

The answer given below :

Explanation:

Ultrasound is a technique which uses sound waves of high frequency to scan internal body parts. Ultrasound is also used at various point of time during pregnancy.

During the first trimester or first three months, ultrasound is carried out to observe the development of the embryo inside the womb.

By performing ultrasound during first trimester also confirms the number of embryos developing and estimate the gestational age and expected date of delivery of the baby.    

1) gene flow

- it is described as the transfer of genes from one population to another population so that frequency of gene is increased.

-a zebra migrates to join a different herd of zebras.

2) natural selection

- a mechanism of evolutionary change in which individuals with advantageous traits survive and reproduce whereas the others ( those that can not adapt) eliminate from the population.

-competition for sunlight leads to taller trees.

3) mutation

- permanent change in the nucleotide sequence of dna ( genetic material) that could have harmful or useful consequences.

-the dna of a snake changes to make its venom stronger.

4) genetic drift - it is a random phenomenon ( that occurs by chance such as fire) that results in change in the gene frequency in a small population.    

-a grassfire randomly sweeps through a population of buffalo and kills most of the animals.

explanation:

blue

light-years

magnitude