Monday, March 10, 2014

Evolution and Adaptations

LAB 6


Adaptive radiation and the different paper forms made by the finches helped or hurt that finches species

Adaptive radiation is a process of changes on species when his environment changes. These changes present in the species might refer to a need for a change of diet, habitat, or reproduction.
The finches’ changes on their beak help the species because it allows them to have more food available when the specie abilities for food collection were divided.

Fill out the following table with your groups data at the end of the natural selection experiment





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

Behavioral adaptations could lead to genetic changes when the genes of the new generation need mutate to adapt changes presented by its ancestors in order to survive.

Durham, NH. (2014).  Structural and Behavioral Adaptations.  Nature News. Retrieved March 8, 2014 from URL:  http://www.nhptv.org/natureworks/nwep1.htm

Name specie that has a physical adaption that may allow its predator not to be able to eat it or find it.

Poison Dart Frog
Poison Dart Frog

This frog has developed a bright color skin that tells its predator to stay away. This 2 inches long frog is world’s most poison frog and its poison can even kill people.

John Dyer, Library Media Specialist.  (Unknown ).  Poison Dart Frog.  Animal Adaptations.  Retrieved March 8, 2014 from URL: http://phanimaladaptations.weebly.com/poison-dart-frog.html



A species that has a physical adaption that allows it to survive in cold weather.

Emperor penguin

This penguin has a thick layer of densely feathers and tufts of down at the base of each feather, which act like a thermal vest, trapping air to keep it warm. The tips of the feathers are broad and curved, and this makes the bird waterproof. A thick layer of blubber (fat) also helps to keep the penguin warm when swim. 


YPTE.  Wildlife in Winter - Adaptations for Survival.  Retrieved March 8, 2014 from URL: http://www.ypte.org.uk/environmental/wildlife-in-winter-adaptations-for-survival/112


Name specie that has a physical adaptation that allows it to survive from its predators.

Cactus

This plant specie has developed spines to avoid be eaten by thirsty animal in the desert.





Name an example of mutualism in nature. Explain what mutualism is in this case.
Acacia ants

Pseudomyrmex ants and Acacia shrubs

The ant receives food from the shrub habitat and the shrub is cleaned from parasites while the ant eats. 

McGinley, M.  (2012).  Mutualism.  Retrieved from http://www.eoearth.org/view/article/154736


Name an example of mimicry in nature. Explain what mimicry is in this case.

Owls
Owls

Those creatures picked trees that patter its own feather color to rest or nest. Cool :) 



Lina. (Oct 4th, 2012).  20 Amazing Examples of Owl Camouflage.  Bored Panda.  Retrieved March 8, 2014 from URL: http://www.boredpanda.com/owl-camouflage/

Sunday, February 9, 2014

Germination and Productivity

LAB 5

The purpose of this lab is to prove right or wrong if can plants germinate in the dark? By using data from 4 different groups of people who planted radish seed in 4 36*36 trays which have been placed 2 on the dark and 2 on the light.

.    What was our control for this experiment?

When the experiment of germination y productivity was carried out in the dark with radish seeds at the same time a control experiment with radish seeds was placed on the sunlight. The same amount of time, seed, and dirt was selected for the experiment and the control with the difference of places.

.    What is the percent of germination for the light treatment? For the dark treatment?

Light treatment, percent germination
36*69 = 69/144 * 100 = 0.479 * 100 = 47.9% = 48%














Dark treatment, percent germination
50/144*100=34.7% = 35%














.    Difference in appearance in the dark treatment and the light treatment

The plants in the dark treatment had a light-healthy green looking while the plants in the dark treatment looked like fall-yellowish. The two treatments had good-looking plants with color differences; the light treatment had some brownish plants, but looking to the overall big picture the green plants look more alive than the yellow ones.

.    If there was growth in the dark treatment plants, explain why that growth may have taken place.

The plants in the dark treatment grew because seeds do not need to photosynthesis to germinate. The embryo inside the seed use the energy stored to germinate and when leaves are up the chloroplasts in it needs the sunlight to do photosynthesis and continue to grow.


   .    Dark treatment
Weight before dry 8.9g
Weight after dry 1.9 g
Loss 7g
Duration 5min
Temperature 400F 
 NPP+R=GPP--1.9g+8.9g= 10.8g

.    Light Treatment
Weight before dry 11.4g
Weight after fry 2.0g
Loss 9.4g
Duration 7min
Temperature 400F
NPP+R=GPP--2.0+11.4 = 13.4g


Conclusion

After obtaining the results from the four groups and the light and dark treatments it is possible to say that the hypothesis is proven right, seeds can germinate without sunlight because of the food stored inside the seed. Also, the results showed that plants that received sunlight grow healthy and good looking while the one that have low sunlight access grow weak, slower, and yellowish.