PRESENTATION OUTLINE
TOXIN ADAPTATIONS
An example of a toxin adaptation is the poison dart frog. This frog was eaten by many predators but adapted their skin into being poisonous toxin that can kill humans. They are located in the Amazon Rainforest.
- An example of a toxin adaptation is the poison dart frog. This frog was eaten by many predators but adapted their skin into being poisonous toxin that can kill humans. They are located in the Amazon Rainforest.
Mimicry
MIMICRY ADAPTATIONS ARE WHEN ONE ORGANISM MIMICS A FEATURE OF ANOTHER ORGANISM FOR ITS OWN BENEFIT. AN EXAMPLE OF THIS IN NATURE IS HOW A MILK SNAKE MIMICS THE COLOR PATTERN OF A CORAL SNAKE'S SCALES BECAUSE A CORAL SNAKE IS POISONOUS SO PREDATORS OF THE MILK SNAKE ARE THROWN OFF. THESE SNAKES ARE LOCATED IN GRASSLANDS.
CAMOUFLAGE
Camouflage is when an organism blends in to its surroundings to avoid predators. An example of this is the Buff-Tip moth which when it closes it wings to looks like a tree branch. It is located throughout Europe.
STABILIZING SELECTION
Stabilizing selection is when a population's genetic diversity is greatly decreased. An example of this is the human baby because most are born at an average weight because if they are born too heavy or too light, then they are more likely to die.
DISRUPTIVE SELECTION
Disruptive selection describes changes in population genetics in which extreme values for a trait are favored over intermediate values. An example of this are the London Pepper Moths because in rural areas they are white but near industrial areas they're black. None our grey though.
Directional Selection
Directional selection is a mode of natural selection in which an extreme phenotype is favored over others. An example of this is the giraffe because all giraffes have a long neck because if they didn't they'd die.
SEXUAL SELECTION
Sexual selection is where typically members of one sex competes with the the same sex to mate with the other sex. An example of this is the elephant seal because males fight over prime breeding spots with each other to mate with a female.
DIVERGENT EVOLUTION
Divergent evolution is the accumulation of differences between groups which can lead to forming a new species. A great example of this are Darwin's finches because they all lived in the same island but they were all different species.
Convergent Evolution
Convergent evolution is the process where organisms that aren't closely related evolve similar traits. An example of this is a bat and bird because they both have wings and similar bone structures but a bat is a mammal and a bird is, well, a bird.
Coevolution
Coevolution is when changes in two or more species' genetic compositions affect each other's evolution at the same time. An example of this is a bumblebee and the flowers that they pollinate because they evolve together because they rely on each other for survival.
