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scoray [572]
3 years ago
14

Two atoms that are isotopes of one another must have the same number of what? Electrons, All Particles, Protons, or Neutrons

Biology
2 answers:
tensa zangetsu [6.8K]3 years ago
7 0
They must have the same number of protons, but a different number of neutrons.
antiseptic1488 [7]3 years ago
5 0
Protons is the answer
hope it helps
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the graph in figure 5.1 shows the growth of a bacterial population which of the following correctly describes the growth curve
defon

The right answer is exponential.

The bacterium multiplies by binary fission: the bacteria grow and then divide into two daughter cells separated by a septum of division formed by the cell wall. During division, the DNA is duplicated as well as the other constituents. Various enzymatic systems of synthesis and degradation participate in cell division.

Bacterial growth is the orderly growth of all components of the bacteria. It results in an increase in the number of bacteria.

During the growth, there is, on one hand, depletion of nutrients in the culture medium and, secondly, an enrichment of by-products of metabolism, potentially toxic. Growth can be studied in a liquid or solid medium.

1 - Growth curve: The growth of a bacterium is studied in a liquid medium. There are 6 phases which together constitute the growth curve.

. Latency phase: the zero growth rate (μ = 0). The duration of this phase depends on the age of the bacteria and the composition of the medium. This is the time required for the bacteria to synthesize the enzymes adapted to the new substrate (no lag phase if transplanting on the same medium as the previous one).

. Acceleration phase: There is an increase in the growth rate.

. Exponential growth: the growth rate reaches a maximum (μ = max). This phase lasts as long as the growth rate is constant. The doubling time of bacteria is the shortest. The cell mass is represented by viable cells (zero mortality).

. Slowing phase: the speed of growth decreases. There is a depletion of the culture medium and an accumulation of waste. There is a beginning of autolysis of bacteria.

. Stationary maximum phase: the growth rate becomes naked (μ = 0). Bacteria that multiply compensate for those that die.

. Decline phase: the growth rate is negative (μ <0). All the nutritional resources are exhausted. There is accumulation of toxic metabolites. There is a decrease in viable organisms and cell lysis under the action of endogenous proteolytic enzymes. However, growth persists by release of substances released during lysis (cryptic growth).

4 0
3 years ago
Read 2 more answers
Although many Yoruba dialects are spoken in Nigeria, the Yoruba belong to one
Dimas [21]
It belongs to the Consumers group
4 0
3 years ago
the endoplasmic reticulum (er) serves as a the endoplasmic reticulum (er) serves as a protein shuffle transpiration area transpo
lutik1710 [3]

Endoplasmic reticulum serves as transpiration area. The correct option is B.

<h3>What is endoplasmic reticulum?</h3>

The endoplasmic reticulum (ER) is a large, dynamic structure in the cell that performs numerous functions such as calcium storage, protein synthesis, and lipid metabolism.

The ER's various functions are carried out by distinct domains, which include tubules, sheets, and the nuclear envelope.

The endoplasmic reticulum can be smooth or rough, and its function is generally to produce proteins that allow the rest of the cell to function.

Ribosomes, which are small, round organelles that make proteins, are found in the rough endoplasmic reticulum.

Thus, the correct option is B.

For more details regarding endoplasmic reticulum, visit:

brainly.com/question/13118914

#SPJ4

3 0
1 year ago
A solution with a pH of 4.15 is a(n)...
zzz [600]

Answer:

weak acid

Explanation:

4-6.9 belongs to weak acids

5 0
3 years ago
In humans, the pelvis and femur, or thigh bone, are involved in walking. In whales, the pelvis and femur shown i
Semenov [28]

The question is incomplete. The complete question is as following:

In humans, the pelvis and the femur, or thighbone, are involved in walking. In whales, the pelvis and femur shown in this figure represent...

Answer:

vestigial structures

Explanation:

A "vestigial structure" or "vestigial organ" are defined as the organs that no longer have any function in the organisms' body but had an important role in past.

<em>Pelvis and femur are thigh bones in humans which helps them in walking but in whale's pelvis and femur are considered as vestigial structures. </em>

The pelvis and femur in whales, are the inherited structure from ancestors and shows evidence for evolution on the basis of natural selection.

Hence, the correct answer is vestigial structures.

3 0
3 years ago
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