Lab. 7 Evolution and Adaptations

Evolution and Adaptation

  1- Explain adaptive radiation and how the different paper forms made by “finches” helped or hurt that particular finch species.

Adaptive radiation is know as the diversification of groups of organisms into several forms. Organisms that are specialized to adapt in a specific environmental. Each new group often diversifies. The main reason that causes different prey forms made by finches helped or hurt that particular finch species 

2- With the" prey" survival data you collect, graph survivorship over time by each species.

3- Explain how behavioral adaptations may lead to genetic changes in a population.

We can see that many factors that cause different behavioral adaptation such as: climate change, and adaption to survive against competitors, predators, flexibility in the early learning of feeding skills that lead to genetic changes in a population.


4- A species that has a behavioral adaptation that may allow its predator not to be able to eat it or find it. Explain what this behavioral adaption is.

The chameleon is a small lizard wich is know for people because it can adapt to the environment. Chameleons are capable of changing color. These color changes assist the reptile to camouflage itself in the presence of potential predators. They shoot their tongue over a long a distance wich allows the chameleon to reach food.

available from: http://www.newworldencyclopedia.org/entry/Chameleon

5- A species that has a physical characteristic that allows it to survive in cold weather.

Adaptation of beavers: Beavers have adapted to cool weather and cool water because they have a very thick skin.  which allows them to survive very low temperatures. They store food for winter time which is very long in most of places. Available from:http://wdfw.wa.gov/living/beavers.html

6- An example of mutualism in nature. Explain what mutualism is this case

Mutualism takes place when the algae provide food for algae by doing photosynthesis and the fungi helps out by forming a protective envelope for the algae preventing the algae from drying out.

7- An example of commensalism in the nature. Explain how your picture represents commensalism.
Barnacles and Whales. The barnacles are a type of crustaceans that are sedentary, i.e. they cannot move on their own. At their larval stage, they stick to the bodies of other organisms like whales, and other places like shells, rocks, or even ships, and grow on their surface. As the whales move about, the barnacles find new habitats where food might be available.This way, they get the nutrition and transportation they need, and the whale is not harmed or benefited in any manner.
Available from: http://www.buzzle.com/articles/examples-of-commensalism.html

9- An example of mimicry in nature. Explain what the mimicry is this case.

Batesian mimicry is the process by which a palatable animal or plant species evolves to mimic an unpalatable animal or plant. The idea is that the predator drives natural selection by learning to avoid the unpalatable species, as well as things that look like the unpalatable species.

As an example we have scarlet king snake

Available from: snakeshttp://indianapublicmedia.org/amomentofscience/batesian-mimicry-snakes/

10- One species of birds from Guatemala that has an adaptation that let it survive. Explain.

The Resplendent Quetzal primarily is frugivorous,  it means that they just eat fruits and plants. Some times they will hunt insects or lizards for feeding their babies. The quetzal one of the most beautiful and endangered species in Guatemala has been adapting to the cost change in the local weather.

Available_from:_http://neotropical.birds.cornell.edu/portal/species/lifehistory?p_p_spp=284856