Unit 10 Reflection

      In this unit we learned about the human body. To this we did labs such as the pig dissection. Our video tutorial on the body parts is attached at the bottom. We learned about the circulatory system and the respiratory system as well as the immune system and lymphatic system. Red blood cells are used to transport carbon dioxide and oxygen. White blood cells use antibodies to fight pathogens. The lymphatic system is a system of tubes and sacs throughout the body that collect waste and blood from tissues. Phagocytosis is a process of swallowing a cell. 

      The vena cava is a large vein carrying deoxygenated blood into the heart. The inferior vena cava carries blood from the lower body and the superior vena cava carries blood from the head, arms, and upper body. The pancreas produces enzymes and hormones that help break down foods. The liver detoxifies chemicals and metabolizes drugs. The spleen acts as a filter for blood as part of the immune system. The ureter carries urine from kidney to the bladder. The coronoary artery supplies blood to the heart muscle. The trachea brings air to the lungs and allows you to breath. The diapragm flexes to allow breathing. The renal artery is a blood vessel that carries oxygenated blood to your kidneys. The aorta is the largest artery in the body. Overall, we learned a lot about the different functions of our body. 

Our pig dissection video

link

On the left is a red cell and on the right is a white blood cell.

link

This is the structure of the heart.

20 Time Final Post

I think my Ted Talk went okay. My partner and I were nervous, so we forgot to bring up a timer. In the middle of the presentation we suddenly realized we forgot but it was too late. We tired to time it as well as possible, but still missed the time slot. If I could do my ted talk again, I would bring up my phone as a timer. I feel like I got better at speaking in front of audiences. I would also practice a lot more because I forgot some of the things I was going to say when I was up in front of everyone.  I think listening to the other presentations was very interesting. It was fun to see other people's ideas. I think our project couldv'e been a lot better as well. We had pictures to go with the things we said, but I forgot to change the slides as I was talking, since we practiced without the slides and just us talking. If I had practiced more I would have gotten the timing for that a lot better. In terms of organization, our project needed some improvement with that. I said some things that were repeated from what my partner said. In summary, we should have practiced a lot more, because if we practiced more, we would have made less mistakes.


Our Ted Talk:

Our data for our experiment:

	Free throws (5 tries)	Elbows (5 tries)	Middle (5 tries)	Total shots made
Person 1	1	0	3	4
Person 2	1	1	4	6

Music type: No Music

	Free throws(5 tries)	Elbows (5 tries)	Middle (5 tries)	Total shots made
Person 1	0	1	2	3
Person 2	3	1	4	7

Music type: Pop

	Free throws (5 tries)	Elbows (5 tries)	Middle (5 tries)	Total shots made
Person 1	1	0	2	3
Person 2	0	1	3	4

Music type: Classical

	Free throws (5 tries)	Elbows (5 tries)	Middle (5 tries)	Total shots made
Person 1	1	0	3	4
Person 2	1	1	4	6

Music type: Rap

20 Time Reflection

For our 20% time project, we were trying to see how music affects sports. We saw that their was positive effects. We chose this topic because my partner, Sirisha likes sports, while I like music. We were focused on using music to improve athletic performance. We had some setbacks because we originally were going to test for basketball, but because we couldn't get a hold of the gym we focused on running instead. We learned that listening to more upbeat music makes you faster when running. If I had a chance to this project again, I would plan our project better so that we could test in school as well. There is still a lot more to learn about this project. We could go more in depth to see which sport gets the most affected by music, or exactly which song has the most positive effect.

Unit 9 Reflection

      In this unit we learned about evolution. We learned that taxonomy is the study of naming and classifying organisms. Phylogeny is the evolutionary history and relationships of a species using taxonomy. The order is Kingdom, Phylum, Class, Order, Family, Genus, and Species. Archea live near hydrothermal vents, hot springs, digestive tracts of animals, and marshes. Chemoheterotrophs are heterotrophic bacteria that take in organic molecules. Photoautotrophs use light to convert carbon dioxide and water into carbon compounds. Chemoautotrophs use energy directly from chemical reactions involving ammonia, hydrogen sulfide, nitrites, sulfur, or iron.
      Viruses are not cells.They are a very small infectious particle consisting of nucleic acid enclosed in a protein coat and, in some cases, a membranous envelope. Bryophyta are mosses. They are the most common seedless nonvascular plants. Pterophyta are ferns. The vascular system allows them to get off the fround resulting in more photosynthesis. The roots allow absorption of water and nutrients. The leaves allow for more photosynthesis. Gymnosperms are cone bearing plants. Angiosperms are flowering plants. There are two major types of Angiosperms. Monocots and Dicots. Monocots have a single seed leaf. The leaf veins are usually parallel. The flower parts are usually in multiples of three. The bundles of vascular tissue are scattered in the stem. Dicots have two seed leaves. Leaf veins are usually netlike. Flower parts are usually in multiples of four or five. They have bundles of vascular tissue in rings in stem.
     Fungal cell walls are made of chitin. Plant cell walls are made of cellulose. There are sac fungi which form a reproductive sac. Yeasts are single-celled sac fungi. Animals are diverse but share common characteristics. 97% of all animal species are invertebrates. Sponges and cnidarians are the simplest animals.Flatworms, mollusks, and annelids belong to closely related phyla.



This is my presentation on cats:

What on Earth Evolved: Cats presentation



this picture shows the difference between dicots and monocots
source

My Inner Fish

In Your Inner Fish, they talked about how fish related to humans. This relates to what we are learning this unit, which is about evolution. The video talked about how fish evolved, and how they have similar traits to humans. We learned about how there was a gene called "Sonic Hedgehog". Sometimes, when the gene is stronger, people grow extra digits, and if the gene is too weak, people end up having less than normal. Some people have six or even four digits. Humans and fish both have gill arches. They look almost identical. Gill arches in humans are jaws and in fish, they are used for gills. This shows how gill arches are analogous structures. In the video, they found a Tiktaalik. It was the first fish to come onto land. They used their neck to watch for predators and hunt smaller prey.



some people have six fingers instead of five
hand



Tiktaalik coming onto land

Purple-striped Jellyfish

The purple striped jellyfish is from the class Scyphozoa. It is from the phylum Cnidaria. It is in the kingdom Animalia. They are known as the "true jellyfish". Scyphozoa display a four type symmetry. They can consist as much as 98% of water. This jellyfish swims by alternating contracting and relaxing a ring of muscle fibers in the mesoglea around the rim of the dome.The purple-striped jellyfish (Chrysaora colorata) is from the order Semaeostomeae. It is from the family Pelagiidae and the genus Chrysoara. The sting of this jellyfish is extremely painful to humans. When the prey touches a marginal tentacle of the purple-striped jellyfish, stingers are immediately discharged to paralyze the prey and the marginal tentacle bends to the nearest oral arm. The oral arm is used to catch motionless prey and to move prey to the gastrovascular cavity. 


source
picture credits

Geologic Time Line Reflection

Three major events in Earth's history is when the colonization of plants and animals happened, when the dinosaurs were abundant, and the ice age. The first few periods were a lot longer compared to the rest of the periods combined. We have evolved a lot and done so much on our planet. I don't have any questions that I can think of at the moment.