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neonofarm [45]
3 years ago
12

What is the purpose of nitrogen-fixing bacteria?

Biology
2 answers:
AveGali [126]3 years ago
8 0

Answer: The symbiotic nitrogen-fixing bacteria invade the root hairs of host plants, where they multiply and stimulate formation of root nodules, enlargements of plant cells and bacteria in intimate association. Within the nodules the bacteria convert free nitrogen to ammonia, which the host plant utilizes for its development. brainliest?

Explanation:

Arturiano [62]3 years ago
3 0

Answer:

Within the nodules the bacteria convert free nitrogen to ammonia, which the host plant utilizes for its development.

Explanation:

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semi anThe bones of a prehistoric man found in the desert of New Mexico contain approximately 5% of the original amount of carbo
Kitty [74]

Answer:

24555 years

Explanation:

Data provided in the question:

Half life of carbon 14 = 5700 years

carbon present in the dead man = 5% of the original amount of carbon 14

Now,

let the initial Amount of carbon be 'A'

Therefore,

after half life

Amount of carbon = \frac{A}{2}

Thus,

\frac{A}{2} = Ae^{kt}

here,

k is the decay constant

t is the time = 5700 years

therefore,

1 = 2e^{k\times5700}

or

0.5 = e^{k\times5700}

taking natural log both the sides

-0.69314 = 5700k

or

k = - 0.000122

therefore,

for dead man Amount of carbon = 5% of A = 0.05A

thus,

0.05A = Ae^{( - 0.000122)t}

or

0.05 = e^{( - 0.000122)t}

taking natural log both the sides

we get

-2.995 = - 0.000122 × t

or

t = 24555.18 ≈ 24555 years

7 0
3 years ago
One way that a genetic counselor is able to help someone who has a genetic disorder and might want to have children in the futur
klio [65]

Advise them about the genetic disorder and the percentage chance of then passing on that disorder to their children.  Also the could advise them as to steps that can be taken in the event they do have children and they have the disorder.

The letter answer A.

8 0
3 years ago
Read 2 more answers
Which of the following best describes artificial selection as compared to natural
Lady_Fox [76]

The statement which best describes artificial selection as compared to natural selection is: C. In artificial selection, the passing on of traits is determined by human choice.

<h3>What is artificial selection?</h3>

An artificial selection can be defined as a process that typically involves human beings breeding living organisms such as <u>animals</u> and <u>plants</u> to favor a desirable characteristic or trait.

This ultimately implies that, the passing on of traits or characteristics is generally determined by human choice in artificial selection rather than in natural selection.

Read more on natural selection here: brainly.com/question/524043

6 0
3 years ago
4. Which types of foods contain which types of macromolecules? Is one type of macromolecule healthier to eat than another? Why d
Leokris [45]
Specifically, we tested for the presence of lipids, proteins, polysaccharides, and monosaccharides in samples of potato, oil, milk, sugar, egg, rice, tofu, bread, and glucose. It is important to know about the presence of different types of macromolecules in our food because it is important. Google
3 0
4 years ago
Which of the following processes produces genetic diversity?
qwelly [4]
Answer:

C. Meiosis

Explanation:

During fertilisation, 1 gamete from each parent combines to form a zygote. Because of recombination and independent assortment in meiosis, each gamete contains a different set of DNA. This produces a unique combination of genes in the resulting zygote.

If I’m right can I get brainliest please
4 0
3 years ago
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