BIOC61H3 Lecture : Lecture 2, 2010

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plumcattle181

15 Dec 2011

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-unusual for species to be spread out on different habitats difficult to categorize taxonomically. Only phytlum of animals that have representative species on land. There are phylums that have only water species and not terrestial. Closesly related but distinct enough to be separated into different phylums tardygrades. Tardy grade: tardy grades are all over the place ( varied habitats) most radiation tolerant most pressure tolerant most tolerant with temperaure changes can travel in space. For ever 10m vertically down in water = to 1atm of pressure. 4000m- 400x atm pressure only organism that can survive this pressure in their dives. Temperature changesin the water its 3-4 degrees celsius. Can ho without water for 10 yers. After ten years then can resassume if water is vailable. Bring up salt levels to higher levels (most organisms can"t tolerate tardigrades can"t either therefore they create a high osmotic pressure polyalchols requirement for oxygen is minimal.

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Click link/watch video/answer questions!

http://www.viddler.com/embed/5908531f (IS THERE A RELTIONSHIP BETWEEN THE DIVERSITY OF PLANT SPECIES AND THE DIVERSITY OF ARTROPODS SPECIES IN DIFFERENT HABITATS?)

1.)DESCRIBE THE RELATIONSHIP BETWEEN THE TERMS ARTHROPODS AND INSECTS.

2,) DESCRIBE IN DETAIL AN EXPERIMENT YOUWOULD CONDUCT TO ANSWER THE QUESTION IN THE EXPERIMENT.

3.)WHAT ARE YOUR PREDICTIONS FOR THE OUTCOME OF THE EXPERIMENT IN THE VIDEO?

4.) WHAT ARE THE ECOLOGICAL CONSEQUENCES OF LOSING ARTHROPOD OR PLANT BIODIVERSITY TO EXOTIC SPECIES OR HABITAT DESTRUCTION?

5.)WHAT ARE THE VARIABLES IN THIS EXPEIMENT?

6.) DO YOU THINK THIS EXPERIMENT WAS ACCURATE ? WAS THE INFORMATION ACCURATE?

7.) DO YOU HAVE A HYPOTHESIS ABOUT WHY THE RELATIONSHIP BETWEEN PLANTS AND ARTHROPODS EXIST?

THANK YOU!

Write your big picture goal for this experiment, using language that a non-biologist could understand.

(I have been struggling using non-biologist lingo because the teacher has been docking me every time i've done a prelab so I need help with phrasing please. this is the summary of the experiment:

The banding patterns on your gel reveal information about the protein composition of muscle

from your seafood samples. Proteins are synthesized according to the genes of an organismâs DNA. Since closely related organisms share similar DNA sequences, the proteins encoded by their DNA should be very similar as well, and similar protein compositions should be reflected in banding patterns. Different branches of related organisms separated at different evolutionary times. The further apart species are on the tree, the less related they are. Mollusks and arthropods diverged from one another before the emergence of chordates, animals with backbones, very early in evolutionary time. These animals are only distantly related to fish, birds, reptiles, mammals and amphibians, which are more closely related to each other. We will compare the information we can obtain from protein samples with the information we can obtain from DNA analysis of these organisms.)

rubygnu811

1. Honey bees engage in entomophily, pollinationthrough pollen distribution, as part of the process to producehoney. What is entomophily an example of?

Ecosystem

Niche

Community

Habitat

2. The organisms that represent the different species within anecosystem that interact in various ways, comprise a_______________

Population

Trophic level

Species

Community

Habitat

3. Inheritable mutations, which may allow a population toevolve, are produced

As a response to selection pressure

By chance

By natural selection

As a response to environmental pressure

By artificial selection

4. The ability of fireflies and angler fish to produce light isan example of convergent evolution. What can you conclude aboutthese two animals based on this information?

They share a recent common ancestor

The ability to produce light is an ancient trait

They are found in the same location

They are both adapted to environments which are low in light

All of the above

5. A zorse is the offspring produced through interbreedingbetween a horse and a zebra. Zorses are often preferred for ridingbecause of their physical shape, but they are sterile. According toLinnaean taxonomy, are zebras and horses classified in the samespecies?

Yes

Sometimes

Not enough information to determine

orchidwasp82

BIOC61H3 Lecture : Lecture 2, 2010

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