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olga_2 [115]
3 years ago
10

Is there any solid scientific evidence that humans have been cloned?

Biology
1 answer:
Marrrta [24]3 years ago
6 0

There is no solid scientific evidence that humans have been cloned.

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What types of cells have DNA? Where in the cell is it located
LuckyWell [14K]

Answer:

Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA). Mitochondria are structures within cells that convert the energy from food into a form that cells can use.

Explanation:

8 0
3 years ago
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Distinguish between breathing and respiration.​
Roman55 [17]

As stated above, breathing is the biological process of inhaling and exhaling of the gases between the cells and the environment. The mechanism of breathing involves various respiratory structures such as the windpipe, lungs and nose. Respiration, on the other hand, is a chemical process that takes place in the cell.

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2 years ago
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Help pleaseeeeeeeeeeeeeeeeeee
nasty-shy [4]

Answer:

Cells produce energy by breaking down sugar and other molecules in the presence of oxygen to produce ATP. So the answer is "B".

Explanation:

The process of producing ATP in animal cells occurs through cellular respiration. Various processes occur in this which involve the presence or absence of oxygen. Glycolysis in the presence of oxygen leads to the production of two molecules of ATP. Glucose is broken down into pyruvate and water.

In citric acid cycle, acetyl coA is utilized to produce <u>2ATP, 6NADH and 2FADH molecules.</u>

Finally oxidative phosphorylation occurs in mitochondria. With the help of electron transport chain, ATP is synthesized by ATP synthase enzyme.

7 0
3 years ago
a. The logistic equation reflects the effect of density-dependent factors, which can ultimately stabilize populations around the
castortr0y [4]

Question:

Which of the following is an incorrect statement about the regulation of populations?

Answer:

b. Density-independent factors have an increasingly greater effect as a population's density increases.

Explanation:

A population can be defined as the total number of living organisms living together in a particular place and sharing certain characteristics in common.

Generally, these populations may be divided into a fraction of the population (subpopulation) based on certain factors and reasons.

Population change equation states that the change in the size of a population over a specific period of time is equal to the sum of the number of births and the number of immigrants that joined.

Mathematically, the population change equation is given by the formula;

Population Change = (Natality - Mortality) + (Immigration - Emigration)

Population regulation can be defined as a biological process that balances limiting factors affecting the growth of a population based on density. The factors that regulate the growth of a population are divided into two (2) main categories and these includes;

I. Density-independent factors.

II. Density-dependent factors.

Density-dependent are regulating factors such as predation, diseases, and competition that affect the size of the population of living organisms through decreasing or increasing mortality and birth rate.

Furthermore, density-independent factors do not have an increasingly greater effect as a population's density increases. Thus, its effect are reduced as a population's density increases in size.

7 0
3 years ago
Explain two ways your life was affected by bacteria today
Marta_Voda [28]

I have a runny nose and things are dirty.

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