controll is your awser you vary a factor to measure the results
Global ocean is not part of the structure.
the structure consists of crust, mantle, outer core and inner core
Answer;
- A batch culture
A closed system, used for bacterial growth, where nothing is added and nothing is removed is called a batch culture.
Explanation;
-Batch culture is a technique used to grow microorganisms or cells. A limited supply of nutrients for growth is provided; when these are used up, or some other factor becomes limiting, the culture declines. Cells, or products that the organisms have made, can then be harvested from the culture.
-In this culture, certain volume of medium is inoculated with cells. The cells grow in the medium and are exposed to changing conditions, as nutrients are depleted and waste products accumulate.
Answer:
c. Ants protect a tree on which they feed.
Explanation:
- Mutualistic relationship is a symbiotic relationship where the organisms involved all benefit from the relationship.
- <em><u>Mutualistic relationship occurs when two different species work together such that each organisms benefits from the relationship. </u></em>
- An example of mutualistic relationship is; ants and trees such that the ants protect a tree on which they feed.
The answer is A. The fertilized soil