Which of the following organisims consists of one cell only?

Question

A) Bacteria B) Fertilized Chicken Egg
C) Fungus D)Amoeba

1. A and D
2. B and C
3. A and B
4. A, B and D

Answer 1

4.

Answer 2

None of those answers: A and,C, D, I guess A and D!

A) Bacteria
(singular: bacterium) are a major group of living organisms. ------ All bacteria reproduce through asexual reproduction (one parent) binary fission, which results in cell division. -----

B) Fertilized Chicken Egg
It wasn't an argument. It was a statement.

An egg is an oocyte cell. It is haploid, but it is a cell nonetheless.

Here are some links that refer to "oocyte cells" so that you understand that it is an accepted, and correct, term.

http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=10952913&dopt=Abstract&holding=f1000
http://www.informatics.jax.org/searches/GO.cgi?id=GO:0030716
http://nature.cc.hirosaki-u.ac.jp/lab/3/animsci/PDF/BOR_63-0723_Suzuki.pdf

An oocyte or ovocyte is a female gametocyte or germ cell involved in reproduction.
A gametocyte is a eukaryotic germ cell that divides by mitosis into other gametocytes or by meiosis into gametes. Male gametocytes are called spermatocytes, and female gametocytes are called oocytes. The development of gametogonia to primary gametocytes and of primary gametocytes to secondary gametocytes is called gametocytogenesis.
The term gametocyte is used, for example, when talking about gametocytes of four species of the genus Plasmodium which transmit malaria.

C) Fungus
Fungi may be single-celled or multicellular. Multicellular fungi are composed of networks of long hollow tubes called hyphae. The hyphae often aggregate in a dense network known as a mycelium. The mycelium grows through the medium on which the fungus feeds. Because fungi are embedded in the medium in which they grow, they are often not visible to the naked eye.

Fungi growing in axenic culture (ascomycetes)Although fungi lack true organs, the mycelia of ascomycetes and basidiomycetes may become organized into more complex reproductive structures called fruiting bodies, or sporocarps, when conditions are right. "Mushroom" is the common name given to the above-ground fruiting bodies of many fungal species. Although these above-ground structures are the most conspicuous to humans, they make up only a small portion of the entire fungal body. Some fungi form rhizoids, which are underground root-like structures that provide support and transport nutrients from the soil to the rest of the mycelium.

A fungus of the species Armillaria ostoyae may be the largest organism on the planet. It was discovered in the Malheur National Forest in Oregon, and its underground mycelial network covers an area of 8.9 km² (2200 acres)[4]. Whether or not this is an actual individual organism is disputed: some tests have indicated that they have the same genetic makeup [5], but this does not exclude its being a clonal colony of numerous smaller individuals.

D) Amoeba

An Amoeba is a genus of protozoa that moves by means of temporary projections called pseudopods, and is well-known as a representative unicellular organism. The word amoeba or ameba is variously used to refer to it and its close relatives, now grouped as the Amoebozoa, or to all protozoa that move using pseudopods, otherwise termed amoeboids.

A microorganism or microbe is an organism that is microscopic (too small to be visible to the naked eye). Microorganisms are often described as single-celled, or unicellular organisms; however, some unicellular protists are visible to the naked eye, and some multicellular species are microscopic. The study of microorganisms is called microbiology.


Actaully all four can be single celled organisms.

For example Eggs Austrich eggs are single celled!

Answer 3

1 is the only 'true' answer

B can not be it as fertilized chicken egg is already many more cells. So all answers with b in it are false.
Fungus can be a single cell but that is not in the answers.

Answer 4

1. (A and D)

Answer 5

The amoeba is the only one-celled organism in your list.

Answer 6

READ your homework assignment ! The answer is in there !

Answer 7

You tell us