Ectothermic Vertebrates Lab Report

The golden trout’s skin is a gradient, ranging from deep blue to turquoise to gray on its top to shimmering gold on its bottom. The two colors blend on the middle of the fish's side, a flawless inter-melting of two vibrant hues. A bright red band streaks across its middle, blood red, and bright. Around 10 dark

There are many patterns that can be observed throughout our environment. In this experiment, the temperatures of organisms in a biophysical environment were analyzed to see if a pattern could be recognized that was related to the behavior of an ectotherm. An ectotherm is an organism that relies on the environment to regulate its body temperature. Organisms such as Pseudemys (turtles) and Lacertilia (lizards) are examples or ectotherms. After arriving at Maxcy Gregg Park and analyzing the temperatures of four microhabitats within two habitats with infrared thermometers, the temperatures were compared between the microhabitats. Then, one habitat was chosen to analyze the temperatures between

The researchers focused their study on determining whether cuttlefish adjust their body pattern intensity with reference to artificial and natural substrate intensity under different light conditions of bright light, moderate light, low light, and extremely low light. For each set of experiments, 10 adult Sepia officinalis were confined with an artificial or natural substrate placed the floor and walls of a seawater-filled tank and was left to get accustomed to low light for 20 minutes. After those 20 minutes, a photo was taken using a flash, digital camera. The cuttlefish is then left to adapt in a set light condition with the same substrate for another 20 minutes. Following the 20 minutes, the light is turned off and a flash photo was

Mutations on Sox10 gene has been reported affecting plumage color (chicken [55] and pigeon[56]) and abnormal pigmentation of skin and hair color (human[57,58] and mouse[59,60]). Gunnarsson et al. [55] mentioned that 8.3-kb deletion upstream of the Sox10 transcription start site leads to reduced Sox10 expression which in turn down-regulates expression of key enzymes in pigment synthesis such as tyrosinase. Lower tyrosinase activity leads to a shift toward a more pheomelanistic (reddish) in chicken plumage color, which is the characteristic feature of the dark brown phenotype. Several autosomal mutation sites on pigeon Sox10 coding region also significantly lowering thyrosinase synthesis which eventually affecting plumage color changes in

The cells that form its skin play a significant roll in the color changes. This zoom represents 150 microns of a chameleon skin, about twice the diameter of a human hair.

The Chameleons uncanny ability to change color has long puzzled people but now the lizard's secret is out. Chameleons can rapidly change color by adjusting a layer of special cells next word within their skin. Unlike other animals that change colors such as octopuses and Squid, chameleons don't modify their hues by accumulating or dispersing pigments within their skin cells. I said, the lizard's rely on structural changes that affect how light reflects on their skin, the researchers said.

Chameleons have their skin covered with layers of a very special cell called “chromatophores” which respond to chemicals from the nervous system and bloodstream. Inside the “chromatophores” there are little sacs of of colors and when a signal comes from the nervous system the sac break and the color spreads through their skin. They only have 4 shades which are red, yellow, blue and brown. But like every artist they can mix colors to make different colors.

This ability supports the notion that cephalopods have some mechanism for spectral discrimination. Another possibility is that cephalopods use photoreceptors in their skin to match the surrounding environment. This approach would allow the cephalopods to have only one photoreceptor type while still being able to match the surrounding environment with the use of the photoreceptors in their skin. However, genomic testing revealed no additional opsins (Albertin, et al., 2015) in the eye, or the skin. With no other light-sensing receptors other than the one photoreceptor type in the retina, the focus shifts to how might the cephalopod determine color with just one type of photoreceptor. Recent research (Stubbs & Stubbs, 2016) has supported the notion that color discrimination in cephalopods that have only one photoreceptor type is accomplished via the use of off-axis pupils and longitudinal chromatic aberration

The process of color change in chameleons is simply fascinating. What happens is that chameleons have a top layer of the skin that is transparent, and underneath it there are layers of skin, which contain chromatophores (these are specialized cells that contain pigment). Beneath the transparent layer, there is a layer with xanthophores (contains yellow pigments) and erythrophores (contains red pigments). Under this layer is layer with iridophores (contain blue pigments). At the bottom are melanophores (contain melanin.

Merlin's Wisdom is an ancestral path where land and self are interwined together, it uses out relationship to the land and it's traditional myths and spiritual powers to transform the individual. The initiate of Merlin's Wisdom is encouraged to "find the stars of their truth", in other words the methods and resources from within to discover and embark on their true path, life's work or

This is a result of strong contrast of the body to the environment. A greater capacity for color change is defined by a shift from submissive coloration to a dominant coloration that contrast more with the environment. Figure 3 shows the relationship between chromatic color change and the conspicuousness of dominant color signals (Cc ). Figure 3A shows the relationship in the top flank. Figure 3B shows the relationship in the mid flank, and figure 3C shows the relationship on the bottom flank. With the exception of a few outliers, most of the data follows a trend in which a higher chromatic color change is correlated to a higher conspicuousness of dominant color

Have you ever wondered why or how chameleons change color? Chameleons have two pigments in their skin, the first is black and the second is made of many colors. Factors such as nerves, hormones, and mood affect what pigments are most visible at any given time. It can also change color due to fright, temperature, and light. They generally are shades of yellow, brown, green, or blue, which are mostly in cryptic patterns. These patterns help them communicate with other chameleons. If you put a leaf on a chameleon’s back, then later take it off, it will leave the chameleon with a leaf-shaped color change. Some can make themselves appear to be leaves complete with leaf veins. This is helpful because 130 out of 156 species of chameleons live

The reading passage discusses an interesting topic about the possibility of the endothermia condition in dinosaurs and provides three reasons for support. However, the lecture cast doubts on the claim made by the article and opposes each of the reasons of the reading passage.

A flamingo's pink or reddish feather, leg, and facial coloration come from a diet high in alpha and beta

Extremophiles are fascinating microorganisms that are able to survive in conditions that are known to be very hostile and impossible for many organisms to occupy. By making use of the adaptability of these microorganisms to extreme environments, we might be able to solve many problems that have been surrounding us and the environment we occupy for many years. One of these problems include the disposal of nuclear waste safely without harming the surrounding lands and resources. In recent years, some extremophiles were discovered that could survive and grow with extreme gamma radiation exposure which is