Dynamic Biological Processes Influence Pop, Density, Dispersion, And Demographics

Density is the amount of matter per unit of measurement (Merriam-Webster. Merriam-Webster, n.d. Web. 26 Aug. 2016.). If water has a density of 1.0 g/mL and you place a substance with a density of 1.8 g/mL the substance will sink because it is denser than water. Density is often measured in g/cm^3 or g/mL because the formula for density is D=m/v.

Plants are found everywhere on earth, up high on the ridge and down low in caves and caverns. The types of plants that live in these places depends on many factors. These factors are separated into two different categories, the biotic factors and the abiotic factors. Some of the biotic factors include, predation, competition, and habitat destruction. Plants with limited competition and large amounts of resources will be in a higher abundance than plants with limited resources and higher competition rates will be confined to areas and either out competed or will be the dominant species. Certain plants adapt to these factors and thrive and others don’t do as well. Some of the abiotic factors include, sunlight, water, temperature, and wind. These

Why is this distinction (i.e., crude versus ecological density) necessary? Which of these two measures of density is typically higher?

Conclusion: The purpose of this lab was to find the relationship between the mass and the volume of the four samples. The densities from least to greatest were shortest(4), short(3), medium(2), and longest(1). Density can vary with temperature, and that could cause errors in the collected data. A real world application of density is icebergs. Icebergs float because they are less dense than the water around them. The icebergs are made of frozen freshwater but they are surrounded by very cold salt water. Initially, salt water has a higher density than freshwater and the low temperatures of the water cause the density to increase even more. The salt water and its increasingly high density allows for the less dense icebergs to float. Knowing this about density is good to know so we can figure out how things in the world work, like how and why massive icebergs float in the middle of the

Density is the mass compared to the ratio of volume. Different substances and different temperatures can cause different things to react differently, causing the density of an object to be higher or lower. A lot has to do with the material as well. Regardless of the temperature metal will usually be denser than a light object such as a Styrofoam

What is density? Density is the degree of compactness of a substance. The density formula is D=Mass divided by Volume. While doing this experiment you will need a graduated cylinder, electric balance and water displacement method to find the density of pennies after 1982. Water displacement is the volume in measure of the amount of space an object takes up. The differences between pennies before 1982 and after 1982 is after 1982 the government decided to put less copper because copper was way to expensive. Pennies before 1982 contained 95% copper, zinc 5% so then after 1982 they started using 95% zinc, and 5% copper. The objective of the lab was to find the density of a penny after 1982 to compare how big the difference was from before 1982

Who knows what density means? Density measures how compact a substance is, or how close together its molecules are. (Grab Hoberman Sphere)

| The density is 0.50 g/mL. There is another choice that has a denser object.

Discussion: Define and explain density in your own words. Density is calculated by dividing its mass by its volume (D=M/V). Density also describes how compact a substance is (amount of space occupied within a certain area). What is the difference between mass and density.

The plants were divided into three groups of ten and the planting pots were placed into trays to ease in the movement of all ten for exposure to sounds. The plants were placed in the same location outside to receive full sun when not being exposed to the particular sound. The plants were watered at the same time with the same spray bottle two times per week as directed on the information slip when purchased. Each evening for 30 days, the group exposed to the violet sound was brought indoors at seven p.m. and placed in a secluded room with an iPad two placed in front of the plants to produce the violet noise. The group of ten plants were left in the room for two continuous hours while being exposed to the sound. Once the two hours were completed the violet group was placed back outside in the original location. The same procedure was followed for the group of ten plants being exposed to the lower frequency brown noise beginning at nine p.m. and concluding at the end of the two hours. The ten Dianthus plants in the control group were not exposed to either sound. Every five days for thirty days, measurement in centimeters and visual observations were made and placed into tables. For measurement, the height of the tallest stem was measured from the top of the soil to the bottom of the flower bud and recorded in centimeters. Visual observations were made and recoded in the same table regarding how many new flower buds appeared, new stem production appeared and if any flower buds were in the process of

Population demographics help scientists predict how populations will change over time and affect other organisms (Belk, Borden-Maier, 2010). A “population size” gives the numbers of organisms in a population, and a “population density” reveals the numbers of organisms per area of land in an ecosystem. The rate at which population grows and shrinks is measured, however, in trees are tagged also Americans have a census. Both are methods to quantify also study a population. Births, deaths,

Trends in population have much to do with the planning and dynamics of the delivery of healthcare. Population size and demographic characteristics as well as births and deaths, are a basic starting point for assessing the need for health services in a population (Williams & Torrens, 2008). According to Williams & Torrens (2008), the dynamics of population are the most fundamental determinants of the need, demand, and use of health care services. The size and age composition of a population have a tremendous impact on total health services use as well as on the distribution of the use of specific services.Therefore, trends in population dynamics, including population size and demographic characteristics as well as births and deaths, are a basic starting point for assessing the need for health services in a population (Williams & Torrens, 2008).

Density is a physical characteristic of a substance that both living and nonliving things possess. However, the amount of a substance does not affect density since density is an intensive property. Determining the density of a substance is significant because it helps to identify it. Although two substances may have the same mass, the densities of each can differ. The more space an object occupies, the less dense it is. Furthermore, the laboratory experiment reveals how important density is especially in everyday life. For instance, in order to know if something will float or not, one would have to know the density. If the object has a density that is lower than that of the water then it has the ability to float.

Demographers can make a population pyramid for any given time period. If they choose different times from the same country, city or chosen area, then the information can be useful in seeing past trends and determining future trends due to population increases or

b. Add Density as the header in the final column of the table. Be sure to indicate appropriate units. Calculate the density for each piece and record the value in the table.