Around how long is the longest fragment of baby guppy DNA?

Explain the importance of producers, primary consumers, secondary consumers and decomposers in an ecosystem.

Compare asexual reproduction to sexual reproduction

Match the examples to the correct level of organization. 1. system level roses, snakes, puppies 2. organism level roots, stamens, leaves 3. tissue level bone, cartilage, blood 4. organ level heart, veins, arteries