Science Essays

Discussion: Biodiversity is the number of different varieties of species living in one ecosystem. Hence if there are many kinds of different species living in an ecosystem, the biodiversity is higher. Higher biodiversity increases the survival rate of the species. This is because, if one particular species is contaminated, extinguished …

Osmosis is the transport of water molecules from an area of their high concentration (hypertonic solution) to an area of their low concentration (hypotonic solution) through a semi-permeable membrane1 such as cell membrane. This tendency, when water molecules move from one region to another is called the water potential. Osmosis …

Using statistics to determine the correlation of plant population between the rugby and football fields at school. Introduction: The Simpson Diversity Index (SDI) is used to analyze the biodiversity of two local communities. In this investigation, students were required to use the SDI to compare the biodiversity of the rugby …

INTRODUCTION Plant contains photosynthetic materials which are responsible in the photosynthesis processes. One of the materials is chloroplast. Chloroplast is actually an organelle found in plant cells and many other eukaryotic organisms. The chloroplast, in green plant, contains many pigments; a few of them are chlorophyll a and chlorophyll b, …

Daucus carota is a root that has small flowers but is capable of self fertilization and is biennial since it grows vegetatively in the first season and produces seeds in the second (Plants for a future 2008). It was originally native to Asia in colors ranging from purple to yellow …

While the food is in the stomach, it is mixed with acid, and enzymes, so chemical digestion takes place. During this, the peristaltic movements on the muscles in the wall of the stomach will mix the food until it is almost a fluid while is called chyme. After some, time …

Data Processing and Presentation Table #1: Mean and Standard Deviation of Blow Dried Hair and Non-Blow Dried Hair Data Type of Hair Mean (N � 0.01 N) Standard Deviation (N) Non-Blow Dried Hair Force 2.08 � 0.68 Blow Dried Hair Force 1.70  0.83 Note: Microsoft Excel 2007 was used to …

Background Information- Pill Bugs are also known as wood lice. Pill Bugs are actually isopods and not bugs. They are dark brown or black and they have 7 legs. Pill Bugs mostly eat rotten vegetation such as vegetables. Pill bugs live in wet locations. They are found under damp objects …

There are many different opinions on whether people should provide a DNA sample to enroll in FCPS schools. Their opinions may be based on different ethics and privacy matters. For example, one person might not want to give a sample just because they don’t want to, but one other person …

The aim of this laboration was to see what temperature woodlice preferred in the range of 21C-25C. Hypothesis As woodlice burrow and prefer moist environment they are likely to prefer cool places over warm places, so they will probably seek away from the light. Variables Independent: Temperature. The temperature was …