Spironucleus Mesnili Trophozoites

2) Why are onion root tip and whitefish blastula areas that are ideal to view mitosis?

Most members of the kingdom Fungi lack flagella; the structures are completely absent in all stages of their life cycle. The only

retains the bacteria’s characteristics and an outer layer that keep characteristics of the cell that engulfed it. Mitochondria and chloroplasts are very similar in size to prokaryotes. Mitochondria and chloroplasts have their own DNA and lack histone proteins, the DNA is circular and

Invertebrates are animals that do not have backbones. There are many different types of invertebrates divided into phyla. They are Porifera, Cnidaria, Platyhelminthes, Nematoda, Annelida, Echinodermata, Mullusca, Arthropoda, and Chordata. Coral are part of the phylum Cnidaria which are a type of invertebrates. They include jellyfish, sea anemones, coral and many more. All cnidarians are shaped in three ways; an umbrella, a cylinder or a bell. The cnidarian world book article states, "Every cnidarian has at least two layers of cells that form its body wall. An outer layer makes up the body covering, and an inner layer lines the digestive cavity." However in some cases there may be an third layer of cell which help support the cnidarian. They eat by opening their mouth which is at one end which leads to

It lacks a backbone, but has a nerve cord that runs down its back and a rod that runs the length of its body parallel to the nerve cord that supports the body (notochord). Humans have a notochord as an embryo, but it breaks up and becomes part of the disks that lie between our vertebrae. Also shared with Amphioxus are gill arches, the bar of cartilage associated with each arch and the cartilage that form jaws, ear bones and our voice box.

4. Compare and contrast the structure of a fungal mycelium with the structure of a filamentous alga.

One of the parts that they are divided into is called the cephalothorax which consists of the head region and the thoracic region. The second part is called the abdomen. The abdomen consists of six clearly divided segments. The chordate is not divided into parts. They all belong to the animal kingdom.

Centrosome:It where most of the microtubules are made. Plant and animal cells centrosomes have almost the same jobs during a cell's division. Only difference is that plants cell centrosomes does not contain centrioles.

The trophozoite of N fowleri consists of an amoeba surrounded by a two-layer membrane. The cytoplasm contains free and bound ribosomes, as well as membrane-bound organelles. A smooth endoplasmic reticulum, a Golgi-like structure, mitochondria, vacuoles, and nucleus-containing nuclear envelope are present. Microfilaments create a supportive cytoskeleton. The N fowleri flagellate is pear-shaped. The cytoplasm has fewer vacuoles, and the components of a flagellar apparatus (flagellum, basal body, rootlet) are present. The spherical cyst is enclosed in a mucous-sealed porous cell wall. The cytoplasm contains enlarged mitochondria and the nucleolus is less pronounced.

Bone- hard tissue consisting of a collagen framework that is filled in with minerals such as calcium

The bacteria cell looks like a pill capsule with a long tail called a flagella. Attached to the outside of the capsule like cell are spaghetti like pili. Around the cell is a cell wall. The cell wall, capsule cytoplasmic membrane are all like a wall around the cell. The Ribosomes are like a bunch of tiny little dots within the cell wall. In the middle of the cell is the nucleoid. The cytoplasm is a jell like structure contain of the cells interior parts. The nucleoid is scattered strands of DNA. I looks a lot like pieces of hair woven

Brachiopod species in which Cornulites was the dominate epibiont almost always displayed deep, angular ribs. Cornulites larvae settled mostly between the ribs, though some instances of the tubeworm growing across the ribs was recorded. Most specimens of Cornulites appeared clustered along the commissure of the brachiopod, supporting the hypothesis that these organisms were filter feeders and the symbiotic relationship was commensalism.

Giardia lamblia is a unicellular eukaryotic protozoan organism, it is without mitochondria. G. lamblia is also referred to as Lamblia intestinalis and a few more. Most protozoa reproduce asexually and is true for G. lamblia which produces two trophozoite per cyst by binary fission. G. lamblia has two stages, a cyst stage and trophozoite stage. Meaning, if you ingested 10 cysts, soon they would reproduce and there will be 20 trophozoite in the intestines. The cyst stage helps the organism survive in its protective capsule. Giardia cysts can survive in water for up to 3 months, which makes the chances of acquiring at an increase. The trophozoite stage is its vegetative state, where the organism obtains its nourishment.

Look at the photo of a Pacinian corpuscle. Notice the onion-like bulb of connective tissue. Describe briefly —

Although both Archaeal and bacterial cells possess flagella for motility, the composition of each organism’s flagellum is very different. In bacterial cell, the flagellum is composed of a basal body, external protein filaments both are joined together by a third component called the hook.(Bacteria Flagella David Gene Morgan , Shahid Khan). In Archaeal, the protein filament is polymerised, glycosylated and very much thinner. The Archaeal flagellum is believed to be similar to the bacteria IV pilus in structure.(www.uniprot.org/keywords/974).