Biology

What are some problems that could emerge from the adaptations of game species to the humanized environment?

Biology

Some people argue that each individual animal has an intrinsic right to survival. Should this right extend to plants and microorganisms? What about the Anopheles mosquito, which transmits malaria? Tigers that sometimes kill people in India? Bacteria that cause typhoid fever? Defend your position. Is it right to use animals for teaching and research? Justify your answer.

Biology

Some people argue that each individual animal has an intrinsic right to survival. Should this right extend to plants and microorganisms? What about the Anopheles mosquito, which transmits malaria? Tigers that sometimes kill people in India? Bacteria that cause typhoid fever? Defend your position. Is it right to use animals for teaching and research? Justify your answer.

Food requirements on earth

Our distant ancestors lived an existence as hunters and gatherers. Population numbers were probably less than 10 million. However, as agriculture was introduced, communities evolved that could support more people. Around 1800, population reached one billion people. Today, there are over 6.1 billion people on Earth. Hunger is a major issue for Third World countries. Much higher annual growth occurs in less developed countries than in higher developed countries. Does the United States grow enough food to feed everyone on the planet? Is there enough food being donated? What are issues related to food donations?

Species diversity: develop a hypothesis about beak size in finches

A group of researchers spent 8 years in the Galapagos Islands measuring beaks, observing feeding behavior, and measuring rainfall in a population of a particular species of Darwin’s finch. They found that this species eats only small seeds and that its beak enables the bird to crack and eat such seeds quickly and efficiently. The beak-size data are in the table below. Develop a hypothesis that explains what caused beak size to increase in dry years. Your hypothesis should specify how the fates of individuals determine changes in the population. Year 1 2 3 4 5 6 7 8 Rainfall normal normal normal very low normal normal normal normal Avg. beak size 10.1 10.3 10.2 12.1 12.... click for more