These biological factors are said to determine an individual’s development and characteristics . the ability to speak a first language are thought to be due to an in progress genetic inheritance. Genes provide the instructions for structuring amino acids which in turn influence the proteins within our body cells. Genes process the chemical basis of our biology. Depending on the genes we inherit and the environmental influences we are exposed to, we will act apon a situation differently.
The great need for food brings forth the importance of the agriculture industry. Science has made many products that allow for food production to be done in a more efficient, cheaper, and faster manner. In the beef industry many types of growth stimulators have been created to increase weight per day of age, shorten finishing time and maximize profit for the producer. More recently, developed products with the common name, beta-agonist, have been developed. Beta-agonists have distinct advantages and disadvantages in terms of animal welfare, meat quality, and profitability when used in production.
Decreased variation leads to a reduced ability to respond to a changing environment. Darwin developed three kinds of theory of natural selection. Those are struggle for existence, variation and role of the environment. Survive of the fittest is the result of differences in rates of survival and reproduction. Darwin reasoned that natural selection could eventually cause isolated populations of the same species to becme separate species as they adopted to their different enviroments.
Examine one evolutionary explanation of behavior Before we had the technology to look at genes specifically, a theory was used to explain how we’ve adapted the traits we have today. Darwin’s theory was that those who adapt best to an environment will have a greater chance of surviving, having offspring, and passing their genes to their offspring. As our environment is always changing, we need to adapt our characteristics to survive in that specific environment. It is the whole aspect of adaptation. It is said that those who are better suited for a certain environment will be more like to breed and pass on these genes also known as natural selection.
Pros and Cons of Genetic Engineering While genetic engineering can lead to introduction of greater quality traits in organisms, it can also have undesirable side effects. To understand the pros and cons of genetic engineering, read on. The science of indirectly manipulating an organism's genes using techniques like molecular cloning and transformation to alter the structure and nature of genes is called genetic engineering. Genetic engineering can bring about a great amount of transformation in the characteristics of an organism by the manipulation of DNA, which is like the code inscribed in every cell determining how it functions. Like any other science, genetic engineering also has pros and cons.
In addition, the accepted normal fate of many species being cloned is to be housed for maximal production and then be slaughtered and eaten. A compelling argument for cloning is that the potential benefits of the procedure to the understanding of life processes and animal disease, to human health, and to food
During this time they also started thinking ahead and analyzing possible consequences. The changes in our ancestors’ ways of thinking led to the development of their bigger brains. As our ancestors’ brains grew larger they needed to eat more and more plants, nuts, and berries than usual or they had to find a new source of food to support their brains along with the rest of their bodies. The solution to their problem was meat; meat is high in protein and calories which would allow our ancestors to function and use their brains at an optimal level. To their fortune there was a lot of meat in Eastern Africa to go around.
It is certainly true that they will often have different lifestyles and certain nutritional needs. Life-stages and breed specific foods were, we believe, a concept brought in some years ago by the larger pet food manufacturers to simply sell you more products. The fact is they want to secure you as a customer early on with their ‘puppy’ food. In addition, the more items in a particular line of food, the higher the visibility of their product on a store shelf, and of course, the more likely people are to stay with the brand throughout their dog’s whole life. If a dog food has a premium nutritional level already, with its protein sources from quality whole meats, it will be more than sufficient for optimal growth and well-being at every life-stage.
Our pets are reservoirs for carrying strains of antibiotic resistance bacteria that can be transferred to humans. For our pets they put antibiotics in their food for better nutritional health. This causes resistance to build up over time and for more resistance genes that are passed along to other animals and humans. The wild bird species carries many different antibiotics resistance bacteria’s. Migratory birds like the water fowl have the potential to spread the resistance bacteria over a large area, like water sources, and our soil.
Causes of Variation and its Importance to Living Organisms Variation between living organisms is almost certainly one of the most important features of all life on planet earth as a whole. Without both interspecific and intraspecific variation, Life as we know it would not exist. Variation between members of the same species, known as intraspecific variation, is one of the driving forces behind evolution through natural selection. Minute variations in organisms, brought about through mutations in their DNA can cause certain members of a community to be better adapted to their environment than others, making them more likely to breed successfully and pass on their superior genes. Alternatively, differences in DNA may provide immunity to a disease which affects most members of a species.