Explain why the chromosomes in the second drawing have sister chromatids, but the chromosomes in the third drawing do not. What happened to the sister chromatids?

Under which conditions does pressure release occur

Which of the following statements correctly identifies why fermentation alone won't keep cells alive.? See Section 9.6 (Page).

Which of the following can disrupt genetic equilibrium? a. mutation c. genetic drift b. migration d. all of the above

What do you think Charles Darwins passion was a child?

Assuming you begin with a single bacterial cell that has doubling time of 15 minutes, how many cells would you find at the end of one hour?

What are the 2 elements involved in the sun's production of energy?

The biggest risk factor for the development of skin cancer is excessive exposure to ultraviolet radiation from sunlight. Exposure to UV light in a tanning booth is safer. Is this statement true or false?

Which of these sets of physical characteristics is used to classify animal groups? A. body size B. number of legs C. body cavity type D. method of reproduction

Explain how temperature and amount of precipitation can affect the type of plants and animals found in the grassland biome?

What is unusual about organisms in the domain Archaea? 1 - They live in extreme environmental conditions 2 - They are very large 3 - Their rate of reproduction is very fast 4 - They are complex, multicellular organisms