Answer: Cell
Explanation:
The cell is the structural and functional unit of life. It is the the most basic level. A life starts from a single cell.
When a male and female gamete(germ cell) fuse together they form zygote. Firstly it is a single cell surviving inside the mother's womb.
Then differentiation takes place and the cell keeps on dividing to form different tissue layers and then organs form which makes a complete baby. Hence, zygote and germ cell are cellular level of organization.
Anorexia nervosa is an eating disorder. It is characterized by restricted intake of energy food, to maintain low body weight than normal, an intense fear of gaining weight, loss of considerable amount of body weight in short span of time, and a disturbed view of the body as obese. No medicine is used to treat anorexia
Molecular methods for the detection of methicillin-resistant
Staphylococcus aureus (MRSA) gained increasing attention because it has
helped in the effective treatment of the infection.
<h3>What is Staphylococcus?</h3>
This is an infection which is caused by the bacteria Staphylococcus
aureus with symptoms such as boils and skin infections.
Methicillin-resistant Staphylococcus aureus (MRSA) makes the infection
difficult to treat because of resistance to some antibiotics which is why
molecular methods for detection is important to use alternative treatments.
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Analogous structures include wings in birds and insects homo-logous structures are DNA sequences due to a common origin, and a vestigial structure can be the human appendix.
<h3>What are analogous structures?</h3>
Analogous structures are traits that have the same function but they originated in different lineages.
Conversely, homo-logous structures have the same common origin but they may play different functions.
In conclusion, wings in different taxonomic groups may represent analogous structures, DNA sequences are homo-logous structures when they have the same ansestor and the human appendix is a vestigial structure.
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A directional movement of water is ocean currents
