Student Blog Post Assignment #10: Anthers and Stigmas and Styles, Oh My!

In the life of plants they have to fight for survival and the only way that their species can keep living is if they reproduce.The first step is the seed. The seed grows into a beautiful plant so when the plant is mature it has something called the stigma which is the female part which collects pollen. The object that is around the stigma is called the anther's. The anther's are the male part that make pollen. The pollen is plant sperm so when the pollen lands on the stigma it fertilizes the eggs that are inside of the stigma. The only reason this can  happen is because of angiosperm. Angiosperm is a fancy way of saying pollinated by animals. The only way they can reproduce is by the help of animals that are moving their pollen. This is why they are angiosperm pollinated plants.

This is a picture of the flower in full bloom.

 

There are the anther's with the stigma when you take the pedals of the flower.

 

This is the stigma which is in the middle of the flower.

 

This is another picture of the stigma when I cut it open to find the eggs. 

                                                                                                                              The last photo I took was the pollen. The pollen is the plants sperm which animals like bees

transfer the pollen to different plants.

    

blog post #10


                                              

                                   Close up picture of a brassica from under the telescope (20x)

                       This is a close up picture of a male part from the brassica (20x)

                 This close up is a picture of the female part of the brassica (20x)

                       This picture is the eggs found in the lady parts of brassica (20x)

blog post #10

Throughout a plants life, they need to survive, and the way their species can survive is if they reproduce or adapt to their surroundings. The first thing formed is the seed, then it will grow into a flower or a plant. If the plant is tall or fully grown it will have a stigma, the female part that collects pollen from other plants. The object around the stigma is the anthers. Anthers are the male part of the plant that produce pollen. The pollen is the plant's sperm. Angiosperm is why this reproduction is able to happen.

Blog post 9

The biggest differences in the Brassica Oleracea plants are in the leaves because the leaves of different species have different shapes, sizes, colors and textures.  I would say that the greatest range of variation among the species was also in the leaves. For instance, broccoli has tiny leaves but kale has huge leaves and the leaves of different species are also different colors.  Long ago, when all the brassica plants were in the same area they probably all had the same traits. Then natural variations and mutations starting happening.Also, people started selecting them for selective breeding like artificial selection and that's when the genes started to change. Descendants started to pass different modifications and started changing which was called descent and modification.  Changes might have been caused by natural variation like droughts and bug swarms. Plants develop adaptations to these changes, which modifies their genes. Something that might affect plants are mutations like RNA getting copied wrong.

"Who wants to live a million years"

It took me five  generations to win the game it might've been because I was risking my populations survival

In the beginning I chose a cubby won and a longneck one and long legs I chose this because they are the main groups. The phenotype that let me survive was long neck and long legs. I think this is so because long necks and long legs have a predators from far and long legs can run from them.

yes because I think my population are greatly affected  by genetic drift. I saw evidence of  genetic drift wen I chose red necks as my life line. They quickly populated more then the other groups but  they wuornt strong enough to survive the virus.

Long necks and long legs seam to be the dominant alleles. I can tell because they were the survivors.

A: short legs fur
B:long legs no fur
C:long legs and strips
D:long neck

I would allow people to chose  more then tree phenotypes at the beginning of the game.  
          
  

A Matter Of Selection

 1.  The part of the Brassica oleracea that has exhibited the most variation is it's height and mass. That is the area where it has showed the most growth, because of the natural resources they get each day like; sunlight, water, and fertile soil from the ground. After all, the part(s) that made the biggest difference between one extreme and its opposite is the color of their leaves, petals, and stems. Compared to others, all the plants have different colors, and sizes because they have different phenotypes.

2. I think that there is many variability in the domestic forms of Brassica oleracea because of the descent of modification from their ancestors and the genes that have been passed down to them. Like some mutations are harmful, not all of the many mutations are harmful.

blog post #9

       The Brassica Oleracea plant is different from other plants because its a lot more colorful, taller, and bigger than most plants. The greatest range of Brassica Oleracea plants are broccoli. One of the most Brassica Oleracea plants that stay the same throughout the garden during the different seasons probably broccoli. The only thing that changes about broccoli is when you don’t maintain the broccoli it starts growing little yellow flowers.