apex chemical essay

“To Build a Fire” by Jack London is set in the harsh landscape of the Yukon Wilderness where the sun does not shine for months and the temperature is continuously more than 50 degrees below zero. London introduces us to the main character whom he only calls “the man” and to his companion, a wolf-dog. The man is headed for an old claim on the left fork of Henderson Creek to meet the “boys”. As they travel, the dog is aware of the brutal cold, however, the man is only aware of the cold when his spit

Dog Walking I have many jobs, but one that I like in particular is dog walking. I love animals so much, so this job doesn't seem so much like a job, as it does just something I would do for fun on an everyday basis. I walk my neighbor's dogs all the time, and I also get paid for doing it. My neighbor has four dogs, and they're all extremely sweet. Even though this job is fun, I also have to take it very serious at times. This job has taught me a lot about responsibility, and taking control

also how it intertwines with human culture. Humans are a self-sabotaging species. Many are ignorant to the damage pollution does to not only the environment but also to us. If the river that was once used for drinking water is now filled with toxic chemicals where does one find a refreshing

It's likely no surprise to dog owners, but growing research suggests that man's best friend often acts more human than canine. Dogs can read facial expressions, communicate jealousy, display empathy, and even watch TV, studies have shown. They've picked up these people-like traits during their evolution from wolves to domesticated pets, which occurred between 11,000 and 16,000 years ago, experts say. In particular, "paying attention to us, getting along with us, [and] tolerating us" has led

Fifteen years from now I picture myself loading SCUBA gear into an old, beaten up dive boat. I feel the morning breeze dissipate from my skin as I pull my wetsuit up to my waist. The salty air whips through my hair as we navigate through the winding canals of a small tropical town until we find our way to the ocean. As we tie up to the bright yellow mooring line I squish my body into the rest of my wetsuit and slip into my prearranged dive gear. I take a deep breath out of my regulator and taste

The significant variations of metal content in species of the same and different trophic levels (Table 3.2) imply that species, more than the trophic category, was the factor which best explained the variability observed in the concentration of metals in terrestrial organisms. This may be bound up their species-specific ability of active excretion of heavy metal ions and/or their ecological characteristics (Van Straalen and Van Wensem 1986; Grodziniska et al. 1987). This find is conforming to Mackay

The removal of apex predators from an ecosystem can result in a surplus of mesopredators (Ripple, 2007). Mesopredators are located directly beneath apex predators on the trophic ladder and are density-limited by their apex predators, therefore keeping total predation pressure restricted within ecosystems. When apex predators are lost, this inhibiting dynamic is removed, resulting in a ‘mesopredator release’ (Hollings, 2013; Wallach, 2015). In ecological communities where apex predator densities are

Two pictures sit side by side. In the first picture, a balding, gray haired man stands alone at the beach. He wears an outdated blue knit sweater and blue jeans. Weeds and dying grass grow at his feet. He shoves his hands in his pockets and looks down to the side. Gray storm clouds loom over murky water, which looks cold and uninviting. Next to this picture, sits the exact same picture; however, one thing changes. This time, a dog sits next to him. Handsome and shiny, the brown dog stares adoringly

Dogs and humans began working together long before written history. Man and Dog, Canis familiaris, survived by hunting and living together. Dogs assisted humans in hunting, gathering, and in defense. It may be hard to see your pooch that way, especially if it is one of the newer breeds. A toy poodle, for example, cannot assist you in hunting. That won't stop them from trying to help you. Dogs understand a lot more than we give them credit for, most use this knowledge to attempt to help their owner

The great barracuda is an open sea predator. Their style of attack is to stalk and ambush their prey. They have a distinguished and torpedo shaped body, which allows them a burst of speed they use for attacking. The tail fin is double notched, a feature unique to the barracuda. It aids in giving them they fast speeds they use to catch their food. The color and pattern of the body can change when desired, which is helpful for prey stalking. This ability to change color and pattern is helpful for them