Normal cells become cancer cells when

What trait separates the least closely related organism from the other animals?

Researchers are conducting a study to determine the effects of vitamin d on the human body. the study involves providing pills that contain vitamin d to one group of human subjects and pills that do not contain the vitamin or other active

A factory is pumping its wastewater which contains chemicals into the ocean. This is causing small numbers of plankton, nekton, and benthos to die. Conservation measures might include?

Which of the following provides the best analogy for an electron in an atomic orbital? a. a bee moving from flower to flower in a garden b. a bird resting on a tree branch c. an ant crawling on the surface of a leaf d.

Why does rwanda have the highest percentage of female lawmakers in the world?

Choose all the answers that apply. Water: 1. can dissolve most substances 2. has a strong attraction to itself 3. is neither acidic nor basic 4. contracts when it freezes 5. heats up and cools down more quickly than land

A seismic station recorded the P-wave, but no S-waves, from an earthquake because S-waves were what?

In vertebrates, what joins the brain to the rest of the body? A. spinal cord B. medulla oblongata C. peripheral nervous system D. vertebral column

Flagship species are often the focus of successful conservation efforts. What are the advantages and disadvantages of this approach to biodiversity conservation? Do you think the advantages outweigh the disadvantages?

what type of evidence should a scientist use when wanting to report their conclusion when conducting a controlled experiment