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2 years ago

Joseph Smith is looking for a summer job as a bookkeeper or accounting assistant. Look at his resume. Then answer the

Biology

1 answer:

Georgia [21]2 years ago

3 0

Answer:

Use a font that is easier to read

Fix the formatting to make it the same throughout

Change the graduation date

Explanation:

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When Hurricane Marilyn struck the Caribbean islands in 1995, a group of about 15 green iguanas floated on storm debris from the

zzz [600]

A. Develop new traits.

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2 years ago

(d) Researchers discovered a strain of C. Parvum that expresses a functional variation of the lactate dehydrogenase gene. A DNA

natima [27]

Answer:

This mutation will produce an enzyme with modified hydrogenase activity

Explanation:

The allosteric site is critical to switch on/off the enzyme activity. The enzymes with allosteric activity are regulated by binding an effector molecule in a different site to the active site of the enzyme.

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2 years ago

please help :) good morning :) For which of these questions could a testable hypothesis be developed? Check all that apply. Do c

Olin [163]

Answer:

peace be upon you dear

Explanation:

The sinus node signals the heart to speed up during exercise or in situations that are stressful, frightening or exciting. For example, a 10- to 15-minute brisk walk typically elevates the heart rate to 110 to 120 beats per minute

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2 years ago

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

Suppose a plant breeder wants to isolate mutants in tomatoes that are defective in dna repair. however, this breeder does not ha

dusya [7]

Plants that have increased levels of mutations that can either be in their germ-line or somatic tissues is what the plant breeder should look for because if plants re defective in DNA repair they should have higher rates of mutation .

7 0

2 years ago