In many ways, modern human lifestyles are at odds with our bipedal locomotion. At no point in history have humans been as inactive as today (especially in developing nations), which has led to a number of physical ailments, such as obesity, loss of mobility, and low back pain. What are some other impacts of evolution on our species? What are some ways we can alleviate these problems? You should include any recommended study tips, review videos, or other materials.

The lung was the first air breathing organ (ABO) that evolved in ancient fishes, but after fish evolved the swim bladder to aid in controlling buoyancy, this latter organ was often converted into an ABO when fish were faced with positive selection for air breathing. So much so, that in groups of fish that evolved before 150 MYA, this is the only type of ABO found. However, air breathing evolved many more times in more recent groups of fishes, but interestingly, now the swim bladder is NEVER used as an ABO and instead all sorts of different body parts are used (e.g. mouth, stomach, intestine). Why did the original swim bladder make such a good target for evolution to turn it into an ABO? What happened in modern fishes to change this? A new device is on the market that senses pulmonary interstitial fluid pressure (around the lung cells) in patients and relates that information to the patient’s health care provider. The focal patient of the article I read about it has congestive left…

According to Darwinian evolution, there must be variation and selection. In the evolution of large claws in lobsters:  What trait(s) might have been variable?              What factors might have resulted in members of the population being selected?                  Speculate about why predatory cats such as the lion and the leopard have not evolved to be as fast as the cheetah.                  The elephant has evolved to be a great size, while the mouse has evolved to be relatively small. Explain how natural selection might favour a different size in each mammal species.

Some anthropologists have argued that a key stage in human brain evolution was access to aquatic food sources that were rich in certain fatty acids and sodium. However, others have countered that many nutrients are enriched in human diets and it is possible that different nutrients, like iodine, may be just as likely to be the causal driver. Indeed, it is possible that our love of salt evolved because salty things often have higher iodine (e.g., seaweed). These ideas are most consistent with which hypothesis in optimal foraging theory? Feeding behavior sometimes has more to do with micronutrient availability The evolution of foraging behavior is driven by selection to maximize calorie intake Animals will feed on unexpected food items to protect against pathogens and parasites The evolution of diet breadth is driven by resource distribution Many human cultures have “bitters” – alcoholic beverages that have been steeped in plant parts, sometimes from 30+ different species! Some have…

Anatomical Definition: Anatomical evidence for evolution is... How evidence supports evolution: This evidence shows that living things change over time (evolution) because... Real-World Example: An animal that you can see this evidence for evolution in is... Picture/Diagram rces of

Point mutations, like the single-nucleotide substitution in human sickle-cell trait, illustrate which of the following evolutionary features? mutations are never detrimental and always advantageous, regardless of the environment mutations might be either advantageous or detrimental, depending on the environment mutations are always detrimental and never advantageous, regardless of the environment mutations are neither advantageous nor detrimental, regardless of the environment mutations are always both advantageous and detrimental, regardless of the environment

Which of the following is an example of evolution?the appearance of insects tolerant to an insecticide after its prolonged overuse. a darkened skin color gained after exposure to sunlight  none of these are examples of evolutionary change  larger muscles gained after months of weight training