#34 Earthworm II Nervous and Circulatory System 12. The earthworm has a ventral nerve cord, why is this design be benificial for the worm? (Think about how it moves). 13. The earthworm has a closed circulatory system. Define what this means. What is the name of the 14. How many "hearts" does the earthworm have? earthworms hearts? 15. The earthworm does not have a respiratory system. Explain then how the earthworms exchanges gases

The negative impacts of nonnative species generally outweigh the positive impacts

Suppose that on a small island off the coast of scotland, 32 percent of the population has blue eyes, which means that these individuals must be homozygous for the blue eye color gene (bb). the only other eye color found on the island is brown, and individuals that are homozygous for the brown eye color gene (bb) or heterozygous (bb) will have brown eyes because brown is the dominant gene. assume this population is in hardy-weinberg equilibrium. if 100 babies are born next year, how many of these would you expect to have brown eyes and be heterozygous? a. 58 b. 49 c. 29 d. 43

Hey everybody, i have another biology question. by what reproductive mechanism does a haplontic animal grow? initially mitosis, then meiosis completely by mitosis completely by meiosis initially by meiosis, then by mitosis