Which organisms have pharyngeal arches that develop from all three germ layers and go through the same development stages as embryos?

if they have a finite resultant

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west

answer(20) psi;

uio

explanation: