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lukranit [14]
4 years ago
12

______ make their own food by extracting compounds from the ocean.photoautotrophs,chemoautotrophs,cyanobacteria

Biology
1 answer:
Nezavi [6.7K]4 years ago
4 0
<span>Both photoautotrophs and chemoautotrophs synthesize organic compounds from (inorganic) carbon dioxide, a process known as carbon fixation. Photoautotrophs get the energy to perform these reactions from light. Chemoautotrophs get it from electron donors such as hydrogen sulfide and ammonia. Cyanobacteria, by contrast, convert nitrogen from the atmosphere into ammonia, a process known as nitrogen fixation.</span>
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Phenylketonuria (PKU) is a disease that results from a recessive gene. Two normal parents produce a child with PKU. What is the
Alina [70]

Answer:

d. 1/2

Explanation:

According to this question, PKU (Phenylketonuria) is a recessive condition in humans. A normal human must possess at least a dominant allele in the gene.

In a situation where two normal parents produce a child with PKU. This means that both parents are heterozygous for the condition i.e Pp × Pp. Hence, the heterozygous male (Pp) will produce gametes in the following proportion: P (1/2) and p (1/2).

This means that the probability that a sperm from the father will contain the PKU allele (p) is 1/2 or 50%

4 0
3 years ago
Which of the following is a way humans use trees? a. paper b. food c. wood d. all of the above
USPshnik [31]

Answer:

the answer is d

Explanation:

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7 0
3 years ago
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If a bacterial cell has a length of 0.9 micrometers (µm), how many nanometers (nm) long is the cell?
Digiron [165]

Answer:

900 nanometer (nm)

Explanation:

Given that,  

Length of a bacterial cell = 0.9 micrometer (µm)

There is a direct relationship between the nanometer and the micrometer scale,

It is that 1 micrometer (μm) = 1000 nanometer (nm)

Therefore, 0.9 μm = 900 nm

Thus, the length of the given bacterial cell is 900 nanometer (nm).

3 0
3 years ago
QUESTION 49
Llana [10]

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Through the digestion system water is mainly absorted in the
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In the digestive system water is mainly REabsorbed in the large intestine
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