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2 years ago

What would likely have happened to Earth if no icy debris had arrived?

1 answer:

iogann1982 [59]2 years ago

3 0

The answer would be e. it would have released water in a volcanic outgassing. The planets were hot to have gas from the solar nebula. Earth,Mars as well as Venus then created their atmosphere through volcanic eruption and retain gases from comet and icy planetesimals vaporizing.

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Growth media are used to grow microorganisms in a lab setting. Some media are liquids; others are more solid or gel-like. A grow

ludmilkaskok [199]

Answer:

Growth media are used to grow microorganisms in a lab setting. Some media are liquids; others are more solid or gel-like. A growth medium provides nutrients, including water, various salts, a source of carbon (like glucose), and a source of nitrogen and amino acids (like yeast extract) so microorganisms can grow and reproduce. Ingredients in a growth medium can be modified to grow unique types of microorganisms. For example; Nutrient agar is a general-purpose, non-selective growth media, Chocolate agar is a non selective, enriched growth medium with red blood cells that have been lysed by heat, Columbia Nalidixic Acid (CNA) and  Mannitol Salt agar  are selective agar for Gram positive organisms and MacConkey agar is a selective agar for Gram negative organisms, Mannitol salt agar MSA is a commonly used selective and differential growth medium that encourages the growth of bacteria that ferments mannitol, Nutrient broth  is an example of a liquid that supports growth of a variety of organisms.

Explanation:

Growth media are classified based on their composition as:

1. General Purpose Media: These type of media support the growth of non-fastidious organisms, that do not require special nutrients for growth, and they also serve as a base for certain modified media. An example is the nutrient agar

2. enriched media: these media, like the name implies, is one that has been modified by the addition of special growth factors and nutrients called enrichment. An example is chocolate agar where lysed blood is added to nutrient base agar, when the blood cells are lysed slowly at 80°C, nicotinamide adenine dinucleotide (factor V or NAD) and hemin (factor X), are released into the medium, and these support growth of certain fastidious organisms like Haemophilus influenza bacteria.

3. Selective media: These kinds of media contain substances that support the growth of certain organisms while in turn preventing the growth of others due to the presence of certain inhibitory factors. Examples are: Mannitol Salt Agar, which supports growth of Gram-positive organisms and MacConkey agar, which supports the growth of Gram-positive organisms

4. Non Selective media: These type of media have no biases against the growth of certain organisms, that is, they do not contain certain inhibitory factors that impede the growth of certain organisms.

5. Differential media: These media contain chromogenic agents that change colour and helps to differentiate one organism from the other, making for ease of identification especially for organisms with similar properties.

Finally, a broth is a growth medium that fo not contain agar, hence, it is liquid and not solid.

8 0

2 years ago

Nonnative species are not always a negative factor, they become invasive species __________.

Scrat [10]

Answer:

its d

Explanation:

8 0

2 years ago

According to the theory proposed by Harry Hess, what causes continents to move? continental drift magnetic polarity seafloor spr

olasank [31]

According to the theory proposed by Harry Hess, what causes continents to move?

The correct answer is : seafloor spreading.

Earlier, in 1912 Alfred Wegener produced evidence that the continents are in motion but this idea was shelved as he could not explain what forces the continents to move. So, almost 50 years later Harry Hess confirmed Wegener's ideas by using the evidence of seafloor spreading to explain what moved continents.

7 0

2 years ago

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Dr. Siddiqui asks you what you think is wrong with Angela. What is your diagnosis? (Note: do not simply say hyper- or hypothyroi

pogonyaev

Answer:

Dr. Siddiqui asks you what you think is wrong with Angela. What is your diagnosis? (Note: do not simplysay hyper- or hypothyroidism; that portion of the question was already answered above. Explain in detailwhy/how you came up with the diagnosis. Include the evidence that led you to this diagnosis.

Judging from Angela’s results, she has Serum thyroxine, Thyrotropin, and SerumTriiodothyronine hormones to be missing. This will cause Hypothyroidism results due to failure of the thyroid gland to produce sufficient hormones.

Angela does not have a goiter at the moment. If her condition continues unchecked will she develop one?Why or why not? Make sure you include information from Angela’s blood work results to back up yourresponse.

Technically, a goiter can develop in a gland that is developing high level of hormone (hyperthyroidism), and low level of hormone (hypothyroidism), or the certain amount of hormone (euthyroidism) needed.

In Angela’s situation, her TSH concentration and thyroid hormones are at a reduced level. This will cause, the pituitary gland in the brain to produce a signal to the thyroid. Thus, her condition should be well observed all through the period till her conditions return to the way it ought to be normally.

6 0

2 years ago

Consider the atps that can be generated via substrate-level phosphorylation. Will glycolysis be useful for generating any atps d

iris [78.8K]

Indeed, glycolysis would be useful for creating ATP as it produces a net increase of ATPs. One glucose particle produces two ATP in a cycle. On the off chance that the ETPUM experiences the procedure of aging, at that point the natural atoms would then be able to be used as the essential electron transporter. Two ATPs would be delivered by means of TCA cycle and yes it will be sufficient to help development.

Further Explanation:

Phosphorylation:

Phosphorylation is the synthetic expansion of a phosphoryl gathering (PO3-) to a natural atom. The expulsion of a phosphoryl gathering is called dephosphorylation. Both phosphorylation and dephosphorylation are done by catalysts (e.g., kinases, phosphotransferases).

ATP:

Adenosine triphosphate is an unpredictable natural synthetic that gives vitality to drive numerous procedures in living cells, for example muscle withdrawal, nerve motivation proliferation, and substance amalgamation. Found in all types of life, ATP is regularly alluded to as the "atomic unit of money" of intracellular vitality move.

ATP utilized for:

ATP Molecule. The Adenosine triphosphate (ATP) particle is the nucleotide referred to in organic chemistry as the "atomic cash" of intracellular vitality move; that is,ATP can store and move substance vitality inside cells.

TCA:

Tricyclic antidepressants (TCAs) are a class of drugs that are utilized basically as antidepressants. TCAs were found in the mid 1950s and were promoted later in the decade. They are named after their concoction structure, which contains three rings of particles.

Subject: biology

Level: college

Keywords: Phosphorylation, ATP,ATP utilized for, TCA.

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2 years ago

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