This example of the Bollworms is an example of evolution by natural selection. For this to be the result of evolution which of the following statements must be true? Worms can change and become resistant to the toxic pesticide during their lifetime. The pesticide causes the mutation that makes the worms resistant. The ability of worms to survive exposure to the toxic pesticide is due to a genetic difference.

An allele that causes an altered form of hemoglobin occurs in all human populations. However in populations where malaria is a threat there is a relatively higher percentage of individuals with the allele. Individuals who have one allele for this condition have an increased resistance to malaria. Individuals with two alleles for this condition have significant medical problems and die young. This allele has been found in high numbers in certain populations in West Africa, Southeast Asia and Greece. What process of evolution likely led to the appearance of this allele? A-mutation B-genetic drift C-natural selection D-gene flow   Refer to the previous example (#2): What process of evolution likely led to this allele being in higher numbers in some populations? A-mutation B-natural selection C-genetic drift D-gene flow

If a fish is able to breathe outside of water but does not produce , that trait will be acquired by other fish . does not impact evolution . is a disadvantageous mutation . will be inherited by other fish .

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…