A population of squirrels is preyed on by small hawks at maturity. the smaller adult squirrels can escape into burrows. the larger adult squirrels can fight off the hawks. after several generations, the squirrels in the area tend to be very small or very large. this is an example of disruptive selection. In disruptive selection, the extreme traits i.e., very small and very large sizes are favoured over intermediate trait i.e., average size.
Answer:
Because lactose intolerance isn't a disease, it just mean the individual's stomach isn't able to digest the lactose found in milk.
Explanation:
The statement about pesticides and herbicides that is not true is B) Once the pesticides and herbicides break down, they are no longer harmful. In fact, they remain harmful long after they break down, so this option is incorrect.
Answer:
The correct answer is A) pharmaceutical companies generally do not allocate a lot of money to research for new antibiotics because they are not very profitable.
Explanation:
Bacterial resistance to antibiotics can occur due to various reasons
1 Bacterial resistance to antibiotics is generated due to overuse in agriculture and over prescribing by doctors in addition to other reasons.As a result the bacteria becomes adapted to those antibiotics.
2 Some bacteria choose to have a mutation that makes them resistant to effects of antibiotics.
3 In some bacteria random mutation occurs that make them resistant to the effect of antibiotics.