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GREYUIT [131]
3 years ago
14

Which of following is not a tenet of the cell theory?

Biology
1 answer:
fomenos3 years ago
7 0

Answer:

D. All cells must have a nucleus

Explanation:

According to the tenets of the cell theory:

a. the cell is the structural unit of life, in other words without the cell there is no life;

b. Reproduction cannot occurs without cell division, hence cells can only arise by division from a preexisting cell;

c. All organisms are composed of one or more cells, prokaryotes are referred to as singled celled organisms while eukaryotes are referred to as multi-cellular organisms;

d. Not all cells must have a nucleus. There are two major types of cells; the prokaryotic cells and the eukaryotic cells. Eukaryotic cells have a well defined nucleus and other membrane bound organelles, while prokaryotic cells do not have a defined nucleus and other membrane bound organelles. Notwithstanding, they both contain genetic materials.

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The answer would be the Codon

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3 years ago
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the ability of the kidneys to remove molecules from the blood plasma by excreting them in the urine is known as .
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the ability of the kidneys to remove molecules from the blood plasma by excreting them in the urine is known as Glomerular filtration. one can estimate the efficiency of Glomerular by GFR Glomerular filtration rate

Measuring measured GFR (mGFR) is a difficult and time-consuming method that is not practicable for patients or doctors, making it difficult to obtain an accurate GFR level. Because of this, medical experts utilise a formula to determine GFR (eGFR). For diagnosing renal disease, which frequently has no symptoms until right before the kidneys fail, accurate estimates of GFR are crucial. A straightforward blood test that evaluates your creatinine levels is the typical method for estimating GFR. The regular breakdown of muscle tissue and the digestion of food protein both produce creatinine, a waste product. In addition to CKD, other factors such as food, muscle mass, or the weight of your muscles, malnutrition, and other chronic conditions can also have an impact on creatinine levels.

to learn more about GFR:

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5 0
2 years ago
Iron is attracted to a magnet while tin is not. If a mixture of iron and tin pieces is placed near a magnet,​
mojhsa [17]

Answer:

The iron will separate from the tin.

Explanation:

5 0
3 years ago
What is the process by which a trait present in an ancestral organism is modified by natural selection over time in descendants
dolphi86 [110]

Answer:

d) descent with modification

Explanation:

According to my research on Darwin's theory of natural selection, I can say that based on the information provided within the question the term being described is called descent with modification. This basically refers to the most dominant traits being passed down from generation to generation, and being modified little by little in each lineage. Which is done through natural selection.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

4 0
4 years ago
Organisms that cannot make their own food are called
kicyunya [14]

Answer:

  • Heterotrophs

Explanation:

Heterotrophs are organisms that cannot make their own food.

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