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RoseWind [281]
4 years ago
8

The only item that can be found on earth in three different phases of matter at standard pressure is?

Biology
1 answer:
Alisiya [41]4 years ago
8 0

The only item that can be found on earth in three different phases of matter at standard pressure is  water( H2O).

1) Below 0 C  water is a solid at Standard Pressure.

2) 0 C to 100 C =  it is a liquid

3) A gas above 100 C is and becomes steam.

Hence, we conclude that water is the only possible compound  found on the earth which is found in the three different phases of earth .

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Carbon and oxygen are helpful in metabolic studies because: Select one: a. They are inexpensive elements b. They are incorporate
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B. They are incorporated into organic material and common found in living things.<span />
4 0
4 years ago
A research team studies a large Eastern Milk Snake population in a metropark. In these snakes, gene T is one gene that affects t
sweet [91]

Answer:

Option E

Explanation:

As per Hardy Weinberg's second equation of equilibrium, the sum of genotype frequency for all possible genotype in a given population with two allele is equal to

p^2 + q^ 2+2pq = 1\\

Substituting the given values in above equation, we get -

0.16 + 0.64 + 0.20 =1\\ p^2+q^2+2pq= 1

Hence, second equation satisfies.

As per  Hardy Weinberg's first equation of equilibrium, sum of all allele frequencies is equal to 1

p + q=1\\\sqrt{0.16} +\sqrt{0.64} \\0.4+0.8 = 1.2\neq 1

Hence, this population is not in Hardy weinberg's equation.

After one generation, the frequency of T allele is 0.4 which is the same as that of frequency of T allele in previous generation

Also as per hardy Weinberg's theory , if a population genotype frequency sums up to 1,  it is in equilibrium if its allele frequency sum is also 1.

But here in 2004. This was not the case.

However, Weinberg has stated that the population which is not in equilibrium can reach equilibrium after one generation only with a new set of genotype frequency and allele frequencies.

Hence, in this case there is a possibility that allele and genotype frequencies have readjusted to sum  up to 1

If frequency of the T allele is 0.4

New frequency of the t  allele would be

1- 0.4\\= 0.6

and New genotype frequencies would be

p^ 2 = 0.4^2 = 0.16\\q^ 2 = (1-0.4)^2 = 0.36\\2pq = 1-0.16-0.36 = 0.48

Thus, p^ 2+q^2+2pq = 1

Hence, option E is correct

5 0
3 years ago
What important event took place in land plant evolution in the Miocene Epoch that influenced the evolution of the ungulate mamma
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Answer: During the Miocene age, the earth experienced a globally warm temperature and due to this, the plant varieties undergone evolution, supporting the advancement of grassland ecosystem and forests also started expanding, leading to a re-diversification of that existing ecosystem in terms of temperature.

Due to this evolutionary changes in plants, the animals like horse experienced changes in the morphological features. It is because of these, the evolution of this organisms took place.

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Which of the following is NOT a result of affluence that is harmful to the environment? a. higher levels of per capita resource
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Answer:lower birth rates

Explanation:

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What are 7 taxa's of plant classification in order​
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Answer: Kingdom, Phylum, Class, Order, Family, Genus, and Species.

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