Today our teacher explained us about sickle cell anaemia and about selective breeding.Then she asked us to take notes.
Sickle cell anaemia
-HbA:codes for normal haemogllbin
-HbS:faulty type in haemoglobin
-Sickle cell crisis:when HbS produces fiber inside blood cells when oxygen concentration is low causing the red blood cells to be pulled in a sickle shape and get styled in blood capillaries
-The two alleles are codominant
-HbA HbA:normal haemoglobin
-HbA HbS:mix of normal and sickle cell hadmoglobin
-HbS HbS:sickle haemoglobin
-Malaria:caused by a single-celled parasite that is injected in the blood by mosquitoes
-HbS HbA:were more resistant to malaria
-The breeder choose es the individuals with characteristics he or she wants to be passed to their offspring and let just them breed(Artificial selection)
-If this process is repeated over many generations, these characteristics will be more common than they used to be
At last language class, we were told by the teacher to do an activity on groups about why Joey(from the book “War horse”)should receive a medal.I worked with Carolina Cremona and Mora Malenchini.
Today at class we were told to do a summery about Romeo and Juliet act 1. I worked with Felícitas de Simone and Juana Navarro .
At the beginning of act 1 there was a fight between the Capulet household and de Montague household in which Benvolio and Tibalt form part of it. Later on the Capulet family threw a party in wich Romeo and Benvolio(two Montague) and their friend Mercutio went without knowing who’s party was.When they were at the party Romeo met Juliet and felt in love at first sight forgetting his superficial and sexual love for Rosaline. Romeo and Juliet talked a little before having their first kiss.
Today at biology class we were told to do some activities about evolution.I worked with Juana Navarro
1a)Most birds don’t prey on the Hypolimnas because they are similar to Amauris which have an unpleasant taste and because of it birds assume that Hypolimnas are Amauris so they don’t prey them.
1b)The wings of Hypolimnas changed over the generation thanks to mutations that helped them to survive.This way animals don’t prey on them because they think they are Amauris which has an unpleasant taste.The ones that didn’t have this mutations were eaten by other animals.
2a)What Lamark would have said is that the sword fish sword got longer through their lifetime because they used it to protect themselves from predator and this acquired caracteristics were passed to their offsprings when they reproduced
2b)Darwin would say that over the generations the sword fish had some mutations such as their sword that got longer and thanks to this they were able to survive while the ones that didn’t have this mutation died.Later on this mutation was passed tho their offsprings
3a)Lamarck would say that as the giraffes needed to eat the leaves of the trees, they needed to have a long neck to reach the leaves. That’s why he would explain that since the giraffes stretched their neck so much to reach their food, and it would grow, so when they would reproduce they new organisms would have a neck that would be getting longer and longer.
3b)Darwin would say that as giraffes couldn’t reach trees, thanks to mutation, when reproducing, the new organisms would start having longer and longer necks than their ancestors to survive.
4)Over generations mammoth were able to evolve thanks to mutations.The mammoths that mutate were able to survive to colder places thanks to their fur and the ones that didn’t mutate died because of the low temperature so the ones that survived reproduced and passed their mutation to their offspring
In our last Biology classes, we have been working with variation and adaptation.Then we were told to do some activities from our teacher’s blog.This are the answers to the activities.I worked with Emilia Varela
-What i learnt today:
What is variation when it helps an organism to survive?
How does the enviroment affects variation?
What are the differences between variation, adaptation and mutation?
How does an organism variate?
Bibliography/sources:AQA AS unit 2 Biology students
Author:Mr Fox’s Science classrom
-These videos are linked to Geography since they talked about how species adapt to different enviroments and History because they say that they evolved through the years, what relates it with History since it happened millions of years ago.
-Three things featured in all birds are:feathers,wings and beak.
-Video 1:Organism’s Mutation
-Video 2:Why Organisms Variate
-Video 3:How Variation Becomes Adaptation
Question: When is the best time to go to the grocery store to avoid lines?
Hypothesis: I thought that the best time to go to the grocery store is at 8pm, at this time it should be easier to avoid lines.
Experiment: I went to the grocery store at different hours and counted how many people were at the line.
Results: I analyzed the results of the experiment and finally got to a conclusion
Conclusion:The experiment showed that the hypothesis was right and that 8pm is the best time to avoid lines at the gorcery store.
Communicate the results:We discussed the results at the class
Today in the lab we saw a video about safety lab rules and then we chose our own safety rules:
1.Don’t run inside
2.Be tidy, avoid rubbish around
3.Avoid long sleeves
4.Hair must be tied up
5.Neve eat or drink inside
6.Let teacher know when glass material is broken
7.wear gooogle in the correct way
8.Never smell substances directly
9.whean heating substances or liquids keep test tubes with their opening away from people
10.Never refillthe original container with the substance.Just discard it