Adiploid organism has 90 chromosomes per cell and undergoes mitosis, the resulting organism will have __ chromosomes.
a. 90
b. 180
c. 30
d. 45

Which organisms have pharyngeal arches that develop from all three germ layers and go through the same development stages as embryos? 1.bird 2.ladybug 3.starfish 4.snake

Which best describes carbon dioxide’s path out of the body

Why are common names a problem for scientist?