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3 years ago

Discuss the evolution of life from a single mother cell to multicellular life form

Biology

1 answer:

posledela3 years ago

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An example of a 3rd class lever is a pair of tweezers!

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3 years ago

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A particular species of bacteria has a "a generation time" of 20 minutes. That is, every 20 minutes a single bacterium completes

timofeeve [1]

Answer:

Number of bacteria cells = 2621440 cells

Explanation:

The generation time of a bacteria specie is the time it takes for a population of bacteria to double in number. The generation time for most common bacteria is quite short, about 20 minutes to 1 hour.

Bacteria reproduce asexually by binary fission, in which the parent cell divides into two to produce two identical daughter cells.

In the given question, the generation time of the bacterial species is 20 minutes.

The time that have passed from between the time the sandwich was packed at 6:00 am to lunch time by 12:00 pm is 6 hours.

Using the given formula in the hint: number of cells = 2^(ab) × C

Where a = number of times per hour the bacteria reproduces; b = number of hours; C = number of bacteria at the start

a = 60 minutes/ 20 minutes = 3; b = 6; C = 10

Number of cells = 2^(3 × 6) × 10

Number of cells = 2621440 cells

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3 years ago

sub-saharan africans show the largest genetic diversity of any human population. this is likely to have resulted from a. a small

boyakko [2]

accumulations of genetic mutations over time.

Genetic and epigenetic changes compound over time to cause cancer. While aging and chronic inflammation are the major causes of epigenetic changes, carcinogenic substances, UV radiation, and other conditions can also cause genetic changes. Our prior exposure levels and life history are reflected in the accumulation and patterns of changes in normal cells. The majority of accumulated changes are regarded as passengers, although they are linked to cancer drivers as they accumulate. Although only hypothesized for genetic changes, this has been demonstrated for aberrant DNA methylation. However, modern technology has made it possible to assess uncommon point mutations, and research has revealed that the rates of their accumulation do actually correspond with cancer risk.

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2 years ago

What type of medication would u you most likely to use for mild sprain Hydrocortisone. Steroids. OTC medication. Opiates

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Opiates are a type of medication used for sprains.

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3 years ago

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Which class of organic molecules provides long-term energy storage. a. carbohydrates b. proteins c. starches d. lipids

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Answer: D - Lipids
Lipids provide a long term energy storage because they contain longer C-H bonds compared to the other organic molecules, making it easier for them to store larger amount of energy. Moreover, upon burning they produce twice the amount of calories compared to that of the carbohydrates.

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