Evolution Michele Padilla Biology/101 February 3, 2014 Sara Young Evolution The evolution lab environmental differences over a period of 100,200,300 years. The lab experiments with two different types of birds on two different types of islands. When changing the inputs of what would affect natural selection, one can view the effects of evolution. The size of the island will make changes to the population. The amount of precipitation will change the beak size.
On the other hand, the total number of people reported affected by natural disasters has increased from 0, to 250 millions over the last 50 years. This shows that the population is growing, and more people are choosing to live in hazardous areas, thus concluding that more people will be affected. The number of disasters has increased but the numbers of deaths has fallen. This could be because of global warming, which has increased the number of hurricanes, tornadoes and other tragedies (hydro metrological hazards). On the other hand, the number of deaths has fallen because of Predictions, (which are 90% accurate, and help give a better understating of the disaster unfolding) Precautions, (meaning people don’t take any chances, and evacuate their homes) and Preparedness (working as community to prepare for any disaster).
For example, some organisms in a population of moths are dark colored, while some are light colored. Natural selection over time results in adaptations, where certain traits are favored due to their influence on survival. Adaptations over many generations can lead to evolution. Peppered moths have lived in the forests around Manchester, England for hundreds of years. There are two genetic variations for color in peppered moths- the moths can be dark with light spots OR light with dark
As of January 2013, the population count rose to 114. Presently, the total population of both captive and wild Whooping Cranes is 699. Threats Loss of crucial wetlands, disturbance of nests during breeding season, and illegal shooting may greatly threaten Whooping Cranes. Freshwater has been diminishing in Texas wintering grounds and the Aransas National Wildlife Refuge area often has boats that transport petrochemicals; this hugely increases the chance of a chemical spill. The bulk of the area Whooping Cranes live is very isolated and vulnerable to
Booker Jones increased production by 20,000 barrels in 1961. If the cost of each barrel is $31.50, then these 20,000 barrels would cost $630,000. This will be added to the inventory account and hence will generate pretax profit of ($630,000 – 407,000) = $223,000. b. If the change were made retroactively as of July 1, 1959 (by adding the cost of barrels to all whiskey in inventory), what would be the effect on i.
Age and Growth of Octopus In order to determine the age of the octopus, scientist performed an experiment that would estimate the growth and the instantaneous rate of mortality, natural mortality, fishing mortality, and relative per recruit. The scientist in this experiment believed that there would be a difference in the age and growth of octopus over a length of time. 2675 samples were collected during the months of October 2000 to December 2002, from the Mandpam region, on the southeast coast of India. In order to determine the age, each sample ranged between 34 and 36 cm in length. The mantle length was taken as the standard measurement for determining age and growth of Octopuses.
d. The number of species with recovery plans may be higher than the actual number of recovery plans as some plans may cover more than one species e. If all the recovery plans were wholly successful, there would still be some risk to all the species, as the threat to biodiversity from human population growth and the resulting environmental changes will still be present. f. In 1875, world energy use was approximately 25 EJ per year. g. In 1975, world energy use had risen to approximately 300 EJ per year. h. The world’s population in 1900 was around 1.6 billion. i.
b) Work schedule mismanagement: Huge overtime costs and absenteeism. c) The berries graded as 3(top quality) were awarded a 50% premium per barrel but only half of them turned out to be of grade3. The solutions for the above mentioned problems are: 1. Forecasts of peak season delivery volumes need to be done so that no trucks are waiting to be unloaded. First we will determine how long it takes to finish processing all the berries that arrive on a day and estimate the resulting overtime and truck waiting costs.
This is the potential usage in 1995. In order to project the numbers forward to 2000 (the date of product release), we must estimate population growth. The elderly population (65 and older), which currently receives 40% of all acute blood loss transfusions, is expected to double by 2030. Assuming linear growth, we can expect this age group to grow 14% by 2000. Similarly, the remaining adult population (under 65), which currently receives 60% of all acute blood loss transfusions, is expected to grow 5.9% by 2030 ((6 – 5.67) / 5.67 = 5.9%).
The immigrations that are expected to increase are the Asians and the Hispanics. Whites are approximately 69 percent of the population but by the year 2050 the population will be down to approximately 50 percent this is due to low births and the immigration. The Asian population is expected to grow triple then what it is now, which will be approximately 33 million Asian Americans. The Hispanic population is expected to increase their population to approximately 102 million Hispanic Americans by the year 2050 ( Cosgrove-Mathers, 2004). The only way that this country can best prepare for the changing race and ethnicity of the current and future citizens is to get past color.