Which of these conditions made it beneficial for aquatic plants to move onto land?

bright sunlight, abundant CO2, and lack of competitors

filtered sunlight, abundant O2, and higher pathogens

less water, abundant nitrogen, and no pathogens

Why do you think the incisors of rodents are so large and never stop growing? why do pigs and humans not need these large incisors?

You and a friend want to split a double-stranded DNA molecule so you each have half. Is it better to cut the length of DNA in half so each person has a shorter length, or to separate the strands and each take one strand? Explain.

Which factor is most likely to cause a faster rate of blood flow?

Describe how the method could be developed to find the optimum pH for catalase activity

Membrane proteins serve many functions, one of which is transportation of substances across a membrane. If a cytologist placed cells into an environment where a chemical blocks the function of carrier proteins, which process will be affected?

Does an electric current cause a coiled wire to become an electric bell

Which is a renewable resource? A) coal B) sunshine C) gasoline D) natural gas

How are fitness and adaptation important to natural selection?

Where do the light-independent reactions of photosynthesis occur? A. Stroma B. Thylakoids C. Cell cytoplasm D. Intermembrane space

What causes pioneer grasses and weeds that have grown in an abandoned field to die?