From where do the placenta and umbilical cord develop? outer cells of the blastocyst
inner cells of the blastocyst
directly from the uterus
directly from the ovary

Ya um forget the human body let’s give our students “ s 3 x e d “

What makes the results of a scientific experiment accurate? a) having multiple trials b) lacking any supporting data c) working in a lab d) using a hypothesis that is always true

Which best describes somatic mutations? they are usually passed on to offspring. they can cause different kinds of cancer. they always result from point mutations. they only occur in reproductive cell

Compare the lunar phase of the waning crescent to the waxing gibbous. the waning crescent is increasing in illumination and the waxing gibbous is decreasing in illumination. the waning crescent is decreasing in illumination and the waxing gibbous is increasing in illumination. the waning crescent is more than half illuminated and the waxing gibbous is less than half illuminated. the waning crescent is more than half illuminated and the waxing gibbous is more than half illuminated.