Specimen A Essay

Professor P Brain is not fully convinced that Specimen A is an animal. My first test is to find out if Specimen A is a true animal. True animals are multicellular creatures, though the number of cells can change significantly through different species. All animals and plants are multicellular, but the earth is also made up of single-celled organisms, which are mostly bacteria. Once taking a sample from Specimen A we found that it was a multicellular heterotroph that lacks a cell wall. Heterotroph’s are not able to make their own food and they must get it some other way, generally from eating other organisms or by finding dead material to eat. Digestion, circulation, barrier function, and sexual reproduction are some of the things that multicellular

Eukaryotic cells are very intricate, they have a nucleus and other organelles. Eukaryotic cell size is restricted, and it can range from ten to one hundred micrometres in diameter. Specimen A seems to have a cell about 50 micrometers in diameter. Eukaryotic cells are usually larger then prokaryotic cells. The eukaryotic animal cell includes all organelles that are in the cytoplasm of the cell. Cells can get energy from the environment but a lot of energy they obtain is not in working form. Cellular organelles, for instance mitochondria, take energy from the environment and change them into a useable energy source. Mechanical and organic functions can be carried out in animals because of the energy that the cells create. The major structures of Specimen A’s eukaryotic cell are the plasma membrane, the Golgi complex, the nucleus, which usually holds the nucleolus, nuclear envelope, nuclear pores, the endoplasmic reticulum (rough and smooth), lysosomes, mitochondria, peroxisomes, microfilaments, microtubules, cilia, and the