Circulatory system. confused!?!?

Which of the following was a social cost associated with the development of the internal combustion engine used in most cars? a. people were able to use their horses for new tasks. b. new jobs were created. c. blacksmiths needed to gain new skills to continue working. d. families were able to travel farther more easily.

Explain wether the alleles in figure 14-1 show dominance incomplete dominance or codominance

Which of the following is a negative effect of algal blooms on the environment? a. transport of carbon to the bottom of the ocean b. production of oxygen c. consumption of water’s oxygen d. large source of energy