What is the difference between directional selection and disruptive selection

1 answer:

8 0

Directional selection is where one phenotype is favored, so an example would be "a population of madagascar hissing cockroaches suffers heavy predation from lizards. Because their heads are small, the lizards are unable to eat the very largest adult cockroaches, and instead prey upon small and medium sized adults, so as a result the large cockroaches are favored and live".
Meanwhile, disruptive selection is where both extreme phenotypes are favored, an example would be "a population of rabbits can have black fur, white fur or grey fur. This population of rabbits lives in an area of white rocks. When a local volcano erupts, black volcanic rock now dots the landscape amongst the white rocks. Now the black and white rabbits live longer because the black and white spots on the landscape camoflauge them. The two extreme phenotypes are being favored."

You might be interested in

What physical property of the soil is rough

torisob [31]

Texture i think because that is the only way you can determine if anything is rough or not

6 0

3 years ago

Macromolecules are labeled as organic because they contain which element?

Len [333]

Answer:

Carbon and hydrogen

Explanation:

7 0

3 years ago

Antelopes and elephants feed on the same species of grasses and shrubs in a savanna and the fitness of each species is reduced w

34kurt

Interspecific competition occurs between antelopes and elephants.

The term "competition" refers to the process that takes place among many species as they fight for the same limited resources in order to maintain their own existence. This struggle over resources occurs among organisms because these species occupy niches that overlap, and as a result, they are compelled to use the same resources like food, water, and shelter.

Competition can be either interspecific or intraspecific. The term "interspecific competition" refers to a type of competition that occurs between various species that live in the same biological area and are dependent on the same source of food.

In the question, both antelopes and elephants feed on the same grass and shrub species. Therefore they compete amongst themselves as a result of which their fitness is reduced.

Learn more about the interspecific competition here:

brainly.com/question/1638475

#SPJ4

7 0

2 years ago

LESSON 4.2 Review

Andrews [41]

Answer:

Energy is said to flow in a "one-way stream" through an ecosystem. In your own words, describe what that means. Energy is not recycled. Energy enters an ecosystem and flows through a food chain, but it is not reused, it is lost as heat.

Hope the answer helps:)

4 0

3 years ago

Read 2 more answers

What drugs are examples of second-line opioid agonists/antagonists prescribed for the treatment of moderate-to-severe pain? sele

olga_2 [115]

The answer should be: codeine, hydrocodone, oxycodone or tramadol

Opioid drugs are frequently used to treat pain. Acetaminophen, aspirin or NSAIDs drug used for mild to moderate pain. The mild opioid will be used in moderate to severe pain while a strong opioid will be used in severe pain. Strong opioid that could be used for severe pain would be morphine, methadone, oxycodone, or fentanyl

4 0

3 years ago