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patriot [66]
2 years ago
11

During a chemical reaction bonds that hold atoms together may be broken or formed is it true or false ​

Biology
2 answers:
Jlenok [28]2 years ago
5 0

Answer:

ko

Explanation:

okok

lianna [129]2 years ago
4 0

Answer:

true

Explanation:

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Which of the following is the correctly abbreviated SI unit describing the amount of a substance?
tiny-mole [99]
The correct answer here would be mole, as this is the unit of measurement used to determine the amount of a substance being used. This particular measurement is usually used during chemistry experiments as it determines how many representative particles there are in any one amount of substance.
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2 years ago
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When the M phase begins during the cell cycle, it starts with____.
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Prophase. The m phase consists of prophase, prometaphase, metaphase, anaphase, and telophase.
7 0
3 years ago
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which of the following is incorrect about the nitrogen cycle? a. nitrate and nitrite reductases in denitrifying bacteria convert
Serjik [45]

The incorrect statement about the nitrogen cycle is option A: nitrate and nitrite reductases in denitrifying bacteria convert ammonia to nitrogen gas.

The biological nitrogen fixation (BNF) is the process by which atmospheric nitrogen is changed into ammonia, and the nitrogen-fixing bacteria are known as diazotrophs. Fixation, ammonification, nitrification, and denitrification are significant nitrogen cycle processes. Ammonia is converted to nitrites and then to nitrates which are absorbed by plants with the help of their roots. Therefore, option A is incorrect.

Through bacteria that fix nitrogen from the atmosphere, nitrogen enters the living world. Soil bacteria convert this nitrogen and nitrogenous animal waste back into gaseous nitrogen, supplying the organic nitrogen required by terrestrial food webs.

To know more about nitrogen cycle, refer to the following link:

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6 0
1 year ago
Dendritic cells and macrophages kill by ingestion and destruction of particulate matter in a process called phagocytosis. Dendri
Korvikt [17]

Answer:

The statement is true

Explanation:

Hematopoietic stem cells give rise to myeloid progenitor and lymphoid progenitor and these two progenitors give rise to many immune cells. Dendritic cells are produced by both the progenitors and macrophages are produced by myeloid progenitor.

Both macrophages and dendritic cells are phagocytes. In phagocytosis, the foreing particles are injected by these phagocytes and they are destryoyed by the action of digestive enzymes present in these phagocytic cells.  

Macrophages are present in tissue and if they are present in blood they are called monocytes. Therefore the statement is true.

6 0
3 years ago
Difference between hypha and mycelium.​
Whitepunk [10]

Answer:

The hypha is the building block of a fungus. On the other hand, mycelium refers to the collection of hyphae in a fungus' body. 2. Hyphae are often described as strands, threads, or filaments because of their appearance.

8 0
2 years ago
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