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Alla [95]
2 years ago
15

Nitrogen is most abundant in the , but can't be absorbed by the without the help of special bacteria and a process called nitrog

en fixation.
Biology
2 answers:
azamat2 years ago
8 0
The correct answers are ATMOSPHERE and BIOSPHERE. Nitrogen is most abundant in the ATMOSPHERE, but nitrogen can't be absorbed by the BIOSPHERE without the help of a special bacteria and without undergoing a process called nitrogen fixation. 
noname [10]2 years ago
3 0

Nitrogen is most abundant in the ATMOSPHERE , but can't be absorbed by the BIOSPHERE without the help of special bacteria and a process called nitrogen fixation

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Somatic cells of roundworms have four individual chromosomes per cell. How many chromosomes would you expect to find in an ovum
andrezito [222]

Answer:

2 chromosomes

Explanation:

The cell of an eukaryotic organism like roundworm contains the Nucleus, which harbors the genetic material embedded in the chromosome. The number of chromosomes of that organism is contained in each cell.

Somatic cells, also called body cells, are all other cells asides sperm and eggs, that form the tissues and organs of an organism. Somatic cells are usually diploid i.e two sets of chromosomes from each parent. In this question, the roundworm has 4 chromosomes in its somatic cell.

The reproductive cells or sex cells (sperm and eggs) of an organism always result from meiotic division of specialized cells.

Since meiosis is a kind of division that results in cells with their chromosome number reduced by half (haploid), it therefore means that the ovum and sperm cell will be expected to contain 2 chromosomes each.

This way, when fertilization occurs (sperm and egg fusion), the resulting zygote, which will eventually develop into an adult organism, will have 4 chromosomes.

3 0
2 years ago
A cell with a predominance of rough endoplasmic reticulum is most likely ________. a cell with a predominance of rough endoplasm
amid [387]
The answer to this question would be: <span>producing large quantities of proteins for secretion.
</span>
A cell with many rough endoplasmic reticulum has a high protein synthesis capability. This will make the cell able to produce many proteins like enzyme. One example of this type of cell will be pancreas cells. This cell will need many enzymes to digest food that you eat so it will need many ER to produce it.
5 0
1 year ago
Read 2 more answers
The above illustration shows the molecule used by some cells to temporarily store energy. The molecule is used in almost all ene
iris [78.8K]
It seems that you have missed the necessary details and options for us to answer this question so  I had to look for it. Anyway, based on the given description above, the molecule which is considered the "gas" that powers a cell's "engine" is called the Adenosine Triphosphate or ATP. Hope this helps.
5 0
2 years ago
Read 2 more answers
Again, imagine that your liver, which has a volume of 2 liters, developed from a single embryonic precursor cell with a volume o
Step2247 [10]

Answer:

41 cycles

If cell division went 2 cell division cycle beyond the  precursor; we have 43 cycles

The volume would be = 17.59 Litres

Explanation:

From the given information:

The number of cells in the liver that developed from an embryonic precursor is roughly \dfrac{2}{10^{-12}}= 2\times10^{12}

The number of cell cycles needed to produce 2\times 10^{12  cells is:

= log_2(2\times 10^{12})

= 40.86

\simeq 41

Thus, nearly 41 cycles of cell division are required to form the mature liver.

Now;

Suppose 2 extra cell division cycles took place;

The total number of cells would be 2⁴³ = 1.759 × 10¹³; &

The volume would be =  1.759 × 10¹³ × 10⁻¹²

The volume would be = 17.59 Litres

8 0
1 year ago
Name the three molecules that are illustrated in Model 1.
FromTheMoon [43]

Answer:

Pentanol, glucose and fatty acid.

Explanation:

Pentanol, glucose and fatty acid are the three molecules which are present in  the given model number 1. In the model, there are three different molecular diagrams for each molecule. The first one is ball and stick model, the second one is Lewis structure and the third one is line drawing method. All diagrams for a same molecule is totally different from another.

3 0
2 years ago
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