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liberstina [14]
3 years ago
5

What scientist thought he proved that plants obtain nutrients from water rather than soil

Biology
1 answer:
mart [117]3 years ago
7 0
The scientist that thought he had proven that plants obtain their nutrients from water rather than soil is Van Helmont.

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A recessive allele causes phenylketonuria (PKU) when homozygote. If the frequency of the recessive allele is 0.05 in the populat
Radda [10]

Answer:

0.095

Explanation:

Phenylkentonuria is a disease caused by a recessive allele.

The frequency of the recessive allele + the frequency of the dominant allele equals 1.

The frequency of the recessive allele is q = 0.05

The frequency of the dominant allele then is p = 1  - q = 0.95

If people mate randomly, the frequency of the homozygous dominant genotype will be p², the frequency of the heterozygous genotype will be 2pq and the frequency of the homozygous recessive genotype will be q² .

2pq=2× 0.05 × 0.95

2pq=0.095

The heterozygote frequency in the population is 0.095

4 0
3 years ago
WALLAHI HELP ME PLEASE THIS SO HARD WALLAHI PLS
Rus_ich [418]

Answer:

B

Explanation:

Kasi po yung Mantle mainit sya may magma ganon. And also the statement of B was a false statement po kase po yung Mantle it never gets cool kaya ganon mainit lagi do yeah B yung sagot

6 0
2 years ago
Fur seals and sea lions have similar body shapes and features. based on their anatomy, they seem to have a relatively recent com
arlik [135]
<span>Looking at the two species' DNA would be a good place to start. If there are a number of similarities in their genotypes, then there would be a good chance that the two would also share some type of a common ancestor. This would be evidence that there was some type of selection that took place that necessitated two different species that shared a number of traits and features.</span>
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3 years ago
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Water vapor exits and CO2 enters a leaf through the
NikAS [45]

It enters through the stoma.

4 0
2 years ago
Explain why oxygen and carbon dioxide diffuse in opposite directions in the lungs?
Vilka [71]

Answer:

There is a higher oxygen content in the air of the lungs than that of oxygen-depleted blood and a lower carbon dioxide concentration. This gradient of concentration causes gas exchange during respiration.

Explanation:

8 0
3 years ago
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