A urease test is used to identifyMyobacterium tuberculosis because

Biology

1 answer:

Tcecarenko [31]3 years ago

6 0

b) some bacteria reduce nitrate ion

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Speece and Brent concluded that most studies of children's understandings of death have found that most children understand the

inessss [21]

Answer:

The answer should be AGE 7

Explanation:

At age 4 Children starts to understand death's entirety. Study reveals that at about age 3, 10 percent of children understand finality against 58 percent of 4-year-olds. As time goes on the remaining two facets of death are learned as time goes on at the age 7.

6 0

3 years ago

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1. Populations can have variety, despite being made up of the same species. If a population has different expressed traits, this

fgiga [73]

Natural Selection proposes that organisms that are better adapted to their environment are able to survive and reproduce.

Even though these frogs are the same species, their shades of green is what helps them to survive in their habitat. In this case, frogs with a lighter shade of green are able to be seen by predators easier, whereas frogs with darker shades are able to blend in (camouflage) more with their surroundings. After a period of time, due to them being easily seen, lighter-shaded green frogs will die off.

To anseer your question, natural selection would have a gradual affect on the frequency of the alleles. Lighter-green allele frequencies would eventually cut off, and darker-green allele frequencies will increase.

Hopefully the following image will help:
As seen in the image, (please forgive the quality, as I had drawn this on some random kids drawing site on the internet...) you can see the affects of natural selection on the allele frequencies. The brighter-green shades gradually decrease over time, as the darker shades increase.

Hope you find this helpful.