Why are Mercury, Venus, Earth and Mars called the "terrestrial" planets? A. They are all made of rock. B. They have all been able to support some form of life. C. They all have solid cores. D. They all have liquid cores and rocky surfaces.

Which of the following best explains the difference between micro and macro evolution? A. Microevolution is based on ideas, while macroevolution is based on facts B. Both micro and macro evolution are when you witness changes to a gene pool. C.

Identify the role of the nucleus in a endoplasmic cell

If the humidity in the air has risen to 100% relative humidity and is still rising, but has not started to condense, what is one possible reason for this?

most cells that have become transformed into cancer cells have which of the following when compared to normal, healthy cell?

What is the function of the Virus?

Which phrase describes the study of ecology? a. transfer of light energy to chemical energy b. organisms that reproduce and maintain structure c. comparing biotic and abiotic ecosystems d. how living things are interconnected with their environment

In an energy pyramid, the amount of energy at the producer level is 475,650 kilocalories. The pyramid has four trophic levels, including the producer level.

When the morning announcements call for you to rise to recite the pledge of allegiance, the signal to stand up on your feet is sent by way of which system?

Which statement is true about cell differentiation? A. It happens in all cells. B. It causes cells to change and specialize. C. It produces identical cells. D. It happens during cell division.

What two factors regulate cell division