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kotykmax [81]
3 years ago
15

What did the miller urey experiment demonstrate

Biology
2 answers:
Olin [163]3 years ago
5 0

Answer:

The Miller and Urey experiment was based on the origin of life. The experimented demonstrated that the important molecules of life were made on the earth with the similar conditions which were stated by Oparin and Haldane hypothesis.

Explanation:

The Oparin and Haldane suggested that the life is originated from simple inorganic molecules. To prove this hypothesis, Miller and Urey performed a experiment to show that organic molecules are formed from inorganic molecules.

The experiment was performed by providing similar conditions of reducing atmosphere. The methane, water, ammonia and hydrogen were used in the experiment and electrodes were placed for electric discharge. Thus, it results in the formation of five amino acids.

siniylev [52]3 years ago
3 0

Answer: It demonstrated what Early Earth was like long ago, when organisms were basic. They tested what organisms were alive and what they were like.

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Y_Kistochka [10]

Answer:A. The release of calcium ions causes myosin and actin to attach to each other.

The contraction of skeletal muscles takes place by induction of a nerve impulse, which produces a movement and the interaction of the filaments containing proteins named as actin and myosin. This interaction of filaments is regulated by proteins  called tropomyosin and troponin present on the actin filaments. The motor nerve causes the depolarization of the muscle membrane sarcolemma. This triggers the sarcoplasmic reticulum to release calcium ions. This calcium binds to troponin and thus allows the tropomyosine strand on the actin filament to displace so that the part of the actin where myosine head needs to be attached remain uncovered. Binding of the actin myosine filament results in contraction.

Hence, the release of calcium ions causes myosin and actin to attach to each other causes muscle contraction.

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3 years ago
Part A
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5 0
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In human, there are 22 pairs of chromosomes called
lara [203]

Females have two copies of the X chromosome, while males have one X and one Y chromosome. The 22 autosomes are numbered by size. The other two chromosomes, X and Y, are the sex chromosomes. This picture of the human chromosomes lined up in pairs is called a karyotype.

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A patient with atopic dermatitis has a new prescription for pimecrolimus (Elidel). After teaching the patient about the medicati
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Answer:

The statement by the patient which indicates that further teaching is needed is:

What to do if I am facing side effects of the drugs?

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What is one difference between monocot and dicot plants?
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