The data observed and recorded in this lab shows that the concentration of miracle gro’ does affect the growth rate and germination speed of black eyed peas. The data is shown through two graphs and two data tables. The control group in this experiment is the seeds with a 0% concentration of miracle gro’, therefore the seeds with just water. The experimental groups are different concentrations of miracle gro’ including a 10%, 15%, 20%, 25%, and 30% concentration. The variable in this experiment is the amount/concentration of miracle gro’. On day one no seeds germinated. By day two, seeds in the control group, 15% and 25% experimental groups had germinated. On day two the experimental group with 25% concentration of miracle gro’ had the most seeds
Dissections are performed on preserved animals donated specifically for science education in order to provide a hands-on experience to observe and study anatomy of an animal in three dimension, unlike a textbook, and how the organ systems are interconnected. In this particular dissection a fetal pig was used because the organs present in a pig, and their position in the body are similar to those of humans which provides insight on how human organs systems work overall and why they are essential to life. The purpose of our experiment was to focus on the external, digestive, cardiovascular, respiratory, and excretory systems of the fetal pig to understand how theses system work together in order to sustain life.
Organelles as organism is from The Lives of a cell authored by Lewis Thomas. Thomas uses a unique writing style that is very recognizable and different from the others. This helps us to appreciate our diversity as human beings demonstrated by our abilities to write differently. As a reader one is able to form an image of who Thomas is by how he expresses his feelings and attitudes. When this text was written a lot of people, mostly scientists, thought and had knowledge of different things than they do now. Science has greatly evolved over the years, there are new discoveries each time, and it’s a fact that right now we know a lot than we did thirty-five years ago.
2a. If sunlight were to disappear almost completely, it would leave lasting effects on many organisms such as an earthworm, a shark, a maple tree, a saguaro cactus, or a teenager. While looking at an earth worm, the short term effects would be beginning to see more of the species during the day. Earthworms are nocturnal, so they live beneath the surface when it is daylight and come out once the sun goes down. Because of this in the long run, the earthworm species would eventually become overpopulated; they would be above the surface more, so they would have more time to reproduce. According to research, sharks’ skin can change color when exposed to sunlight, similar to the way humans tan, and they can develop skin cancer as well. Looking at short term and long term effects, at first sharks would begin to reduce the amount of color change seen to their skin, and eventually, skin cancer rates of this species would decrease. Changing from animals to plants, a maple tree would experience effects as well. Sunlight is important to this type of tree due to the pigment and their need to change from green to red leaves. If sunlight were to disappear, at first it would be noticeable how the leaves were not changing from green to red, at least not as much. A more long term effect would be stunted tree growth because trees need sunlight to grow
After performing the Brine Shrimp Inquiry lab my group found that .5% salinity of 50 mL of water was the ideal salinity for hatching brine shrimp. To figure out what salinity was ideal we tested three different levels of salinity. The first thing we did when we began the lab was choose three different salinities to test. My group choose .5%, 3%, and 5%, next we choose the amount of water that would be in each dish; we decided on 50 mL of water. We then calculated the amount of salt to put in each dish. To do this we created proportions. We calculated that we need to put .25 mL of salt in 50 mL of water to create .5% salinity, 1.5 mL of salt in 50 mL of water to create 3% salinity, and 2.5 mL of salt
Throughout the semester in AP Biology I’ve been able to cover several different topics. These include being able to identify biological processes that require energy, investigating and modeling ways organisms capture and store free energy for use in biological processes and investigating and explaining how organisms respond to changes in their environment. Over the semester I have been able to gain a full understanding and can demonstrate proficiency in each of these components of the curriculum. The work that I have completed involving these topics shows this.
This experiment is an attempt to investigate the amount of water potential across root storage plant species. The root storage plant species that shall be used are the carrot and the potato and the method that shall be used is known as Chardakov’s method. Water potential is the tendency of water to enter or leave a cell. Water moves from an area or region of low water potential to an area of high water potential. It is important to note that the highest water potential is 0(the water potential of pure water) and the other water potential values are in negative numbers .
The pituitary gland is a central endocrine organ that regulates basic physiological functions incuding growth, reproduction and metabolic homeostasis. It situates at the base of the brain, under the optic chiasm, inside a depression on the upper surface of the sphenoid bone, the sella turcica1 (Fig.1).
What is the effect of surface area to volume ratio on the rate of diffusion of the colour from the agar jelly cube?
This means since my father’s earlobes are attached, differing from my mom’s free hanging ones, one of them has a homozygous recessive genotype. Due to the fact my brother and I both have free hanging earlobes like my mother, the probability is higher that free hanging earlobes are a dominant trait. For example, if my mom’s trait was heterozygous, meaning her phenotype would still be that of a dominant one, the probability my parents have a child with free earlobes is 50% along with the chance of having a child with attached at also 50 %. If my mom carried the homozygous dominant alleles instead of the heterozygous, the probability my parent’s offspring would have free hanging earlobes would be