Which is the most likely reason that stem cell research is controversial?
a.-stem cell research could lead to the development of human clones.
b.-many people assume that all human stem cells come from embryos.
c.-research by using stem cells results in high-priced treatments for disease.
d.-information that is obtained from stem cell research is considered unreliable.

In 1992, hurricane andrew left a wake of destruction through florida. one victim of the storm was a reptile-breeding facility. over 900 burmese pythons were set free, and today thousands of pythons live in florida. these pythons are an invasive species, or a harmful species not native to the region. 1. what impacts do you think the burmese pythons might have on local ecosystems

Which of the following produces carbon dioxide? a. plants b. animals c. decomposers d. all of the above

The arrows indicate the direction of wind flow. which place experiences monsoons?