Final blog:Reflect on your semester and year in biology What were your successes? What were your failures? What did you learn that you will never forget?

This year l actually learn a lot of useful things,and l should say that biology is a funny subject which support human in many aspects.However,my success in this year is l understand some phenomenon which l confuse and curious before.For example,l notice that father's height is directly has a big impact on his son's height because genetic.Also,tigers have sharp teeth because they need it to be the weapon which can satisfy their appetite.lt's apply to the natural selection.Except the success,l kind of screw something on this period.As l didn't finish the ecological plants project because l mess the cup and the dirt up.That's actually quiet pity.The things l learned which l will never forget may be the dissection part.lt is really interesting.l never do it in Chinese school and other period in here.As a result,it is quite new and attractive to me.lt inform a lot about animals' organ and systems such as respiration and digestion.Shortly,this class help me understand this earth and some distinct species much deeper than last year.l am appreciate about these,Ms.Malonek,thanks.

Blog 14 Compare two of the organisms that we have dissected Discuss at least 2 similarities and 3 differences

There are some similarities and differences between crayfish and fish.First,their nerve system are almost the same.They both have a small brain which is next to their eyes.Their respiration is quite similar as well.Because they both live in the water.They use gills to breath instead of use lung.Their external apperance is differ a lot.Fish have a streamline body which can allow their to swim fast.While crayfish have walking legs in order to walk.Also,their excretory system is different because crayfish's anus is at the tip of its tail.

Blog 13 What was most interesting about this week's dissections?

This week's dissection about claw fish actually impress me a lot.Not only because l like eat this,but also l feel interesting about its complex internal system.lt has a brain same as human,but its heart is kind of big if you compare to its small body.lnstead of have a lung to do respiration.lt has a big gill.lts degestive system is from intestine to anus,lt is quite similar to human.lt uses its walking legs to crawl.lt may work effective because it has many of them. 

Blog#12 What surprised you from the worm's dissection?

Firstable,l am surprised by this tiny worm's complex organ.lf l don't cut it out,l can't image how a little earthworm even contain so many things.Then,l realize its respiratory organ is just its mouth.lts brain is also kind of small if you compare it to its body.lts intestine is not very long.lts heart is vary from human by stay in the center of its body.At last,its anus is at the tip of the body surpised me as well.

Get a picture of alternation of generations put it in your blog and explain how it relates to plants

Alternation of generations (also known as alternation of phases or metagenesis) is a term primarily used in describing the life cycle of plants (taken here to mean the Archaeplastida). A multicellular diploid sporophyte, with N paired chromosomes (i.e. 2N in total), alternates with a multicellular haploid gametophyte, with N unpaired chromosomes. A mature sporophyte produces spores by meiosis, a process which results in a reduction of the number of chromosomes by a half. Spores germinate and grow into a gametophyte. At maturity, the gametophyte produces gametes by mitosis. Two gametes (originating from different organisms of the same species or from the same organism) fuse to produce a zygote, which develops into a diploid sporophyte. This cycle, from sporophyte to sporophyte (or equally from gametophyte to gametophyte), is the way in which all land plants and many algae undergo sexual reproduction.

Why is dissection an important part of a biology curriculum? Which animals and/or plants should be included in biological studies?

Dissection is important because it is usually the process of disassembling and observing something to determine its internal structure and as an aid to discerning the functions and relationships of its components.lt is necessary to use it in order to do much deeper research.Without to cut it out,we can only see the organism's cover,and it's not enough.However,l think the animals or the plants which is in danger should be included in biogical studies because after we keep on studying,it may have some breakthrough which can help them.

Blog 9 Define the different forms of community interaction: competition, commensalism, mutualism, predation, parasitism Give an example and a picture for each

competition occurs when organisms of the same or different species attempt to use an ecological resource in the same place at the same time.for example,tiger and lion may compete each other by fighting for their prey.
predation is an interaction in which one organism captures and feeds on another organism.such as panther is depend on sheep or other animal to be its food.it needs to eat them in order to survive.

in mutualism,both species benefit from the relationship.many flowers depend on certain species of insects to pollinate them.they both get good advantage from each other.

in commensalism,one member of the association benefits and the other is neither helped nor harmed.for example,small marine animals called barnacles,often attach themselves to a whale's skin.yet,the barnacles benfit from the constant movement of water past the swimming whale,because the water carries food particles to them.however,whales do not have any disatvantage.

in parasitism,one organism lives on or inside another organism and harms it.as a parasite obtains all or part of its nutrientional needs from the other organism.