Paragonimus Westermani Compare And Contrast

More evidence of the Parahomo fracticranius behavior can be determined by analyzing their teeth; which consists of high molar cusps and

They then lodge in the heart, lungs, and surrounding blood vessels and begin reproducing. Adult worms can grow up to 12 inches in length, can live 5-7 years, and a dog can have as many as 250 worms in its system.”

Kang suspects that the worm bridges two temperature zones because the bacteria in its gut require warmth while its red plume harvests nutrients in the cooler water above” (nationalgeographic.com). Battling the harsh ecosystem, the giant tube worm’s plume helps it survive because the plume extends to the cool water to gather nutrients. It also has lots of blood vessels with large amounts of hemoglobin to help carry oxygen while living in extreme sulfide infested hydrothermal vents. In addition, the plume is retractable when threatened. Moreover, the bridging of the two temperature zones helps by supplying nutrients in the cooler water, while providing a heated home for the bacteria thus helping the giant tube worm’s symbiotic relationship. ­­­­­­­­The giant tube worm’s second adaptation is the combination of fatty acids in their lipid membranes and proton pumping mechanism. Extreme Marine reports, “In response to the immense pressure and low temperature of the deep ocean, tubeworms are able to increase the relative amount of rigid, double bonded unsaturated fatty acids in their lipid membranes. This prevents the membranes from packing densely together and ultimately solidifying (Cossins and Bowler, 1990). R.pachyptila also maintains a

They are hairless and have seven short lines running down their back diagonally. They have a very long spine, or horn, at the end of their body. Because of this, they are part of the hornworm caterpillar group. Once the caterpillar is mature, the horn will have be gone and replaced by an eyespot. August and September is the usually time to spot a caterpillar of this species.

The purpose of this assignment is to learn, observe and experience the biology of the Tobacco Hornworm through the different stages of its lifecycle, along with describing the processes which occur through each development stage. When I picked up my hornworm, I received three eggs in the tubular container. During my examination, the hornworms lived in two environments. They first lived in the small, tubular container they arrived in until they outgrew it. I then placed them in a large plastic container for the remainder of their lifecycle.

The mealworm is the larva of the mealworm beetle which is a specie of darkling beetle (Animals.mom.me, 2016). The darkling beetle has a metamorphic life cycle that begins with an egg hatching into a small mealworm over a four week period (Sandhyarani, 2016). The second life stage of a darkling beetle is the larva stage where the egg will hatch into a small brown mealworm that eats and grows for about eight to ten weeks till its next stage as a darkling beetle pupa (Sandhyarani, 2016). The larva stage of a darkling beetle is the stage in which the mealworms will be investigated. The mealworm will then enter the pupa stage during one of its shell sheds causing the mealworm to

In order to reduce mortality rate and increase efficiency two methods were found in the life cycles of trematodes. The upward incorporation has a new definitive host from a high level of the food web and this host preys on the old definitive host (become intermediate) and are then combined together as one which reduces reproduction. The downward incorporation has a new intermediate host combined to a lower level of the food web and therefore, reduces mortality and makes it easier to go to the original host. Having multiple host is usually facultative

The Nightcrawler worm is, like other species of worms, a hermaphrodite. Although the worm contains the sexual organs of both the genders, they still need to mate to reproduce. The two worms lie alongside each other and transfer sperm to the both of them. Each worm will lay capsules to be used as a cocoon for the egg. When the capsules break fully formed tiny worms will emerge. It is said that they prefer to mate during the spring and fall time. It takes a year for the tiny worms to fully grow, and it is also said worms live for 3-8 years, although that isn’t

The worm was long and thin, 140 segments long. The dorsal side was a dark, brownish color with the black stripe of the dorsal blood vessel visible. The ventral side, in contrast, was light and slightly pink. Its head was darker and thicker, capped by a ligh, yellowish clitellum.

Limulis Polyhemus is the scientific name of the commonly known horseshoe crab. It is one of only four living members of Xiphosura. Being a common inhabitant of shallow waters and soft bottoms such as the beach, it can be found plowing on surface of the sand feeding on invertebrates that are collected from the sediment. This dioecious – dark brow organism is considered to be one of the largest chelicerates, that could reach a maximum length of 60cm. One character that differentiates Limulus from other arthropods, are the absence of antennae.

(Wormer). The eggs are dull white and 2.86 by 1.89 inches to 3.43 by 2.34

First of all, the worm is still greatly adapted to the environment. Worms like darkness so they live underground. The worms´ structure was adapted to move in narrow tunnels. They eat leaves and other decomposed things at night. Also, worms have setae which help

Figure 1 – Image showing the lifecycle of the roundworm in a dog host, notice how the parasite is adapted to be transmitted externally from one host to the next, this must mean that the parasite is also adapted to survive in unfavourable conditions while waiting to obtain another host.

The amazing thing about this parasite is its bizarre life cycle. It begins its life as a male and matures in the gills. Once developed, it matures into a female and only the female latches onto the tongue. Males

It was usually very noticeable when the Hornworm had transitioned to a new instar because of the difference in size, appearance, or the presence of shed exuvium. If I was ever unsure, a lot of available resources were online and also posted onto Blackboard. A picture was taken at every transitional stage.