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3 years ago

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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Which level of organization completes a series of task?

tia_tia [17]

Option C would be correct. The organ system can plays many parts at one time. Also, it is the only system listed.

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3 years ago

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PLEASE HELP!!!!!!!

lys-0071 [83]

Answer:

When the required direction of transport is opposed to concentration levels, a cell will expend energy to force ions across its membrane.

Explanation:

If the concentration gradient is opposite to the direction of transport of minerals, then the cell will use energy to transport mineral ions from a lower concentration to a higher concentration. The most common process through which this happens is termed as the active transport.

The process of active transport is opposite to passive transport. In passive transport, molecules move from a higher concentration to a lower concentration.

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3 years ago

What are the five parts of skill related fitness. Please select all 5 below. Question 1 options: Speed Muscular Strength Coordin

Goryan [66]

Answer:

There are only four parts of skill related fitness in the options; they are:

Speed

Agility

Balance

Coordination

Explanation:

Physical fitness refers to the ability to perform physical activities well without fatigue. In other words, being physically fit refers to a state of general wellbeing. Physical fitness can either be health-related or skill-related. The skill-related components are six in number viz: agility, power, balance, coordination, speed and reaction time.

However, only four of these skill-related parts of physical fitness are mentioned in the options of this question. They are:

- Speed: This refers to the ability to run a distance in a short time frame.

- Agility: This is the ability to move easily and quickly in different directions

- Balance: The ability to maintain an upright body position during training or physical activity

- Coordination: The ability to make physical senses of one's body (eye) cooperate with the limbs (hands and feets) during a physical activity.

Note that, Aerobic Endurance and Muscular strength are health-related components of fitness

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4 years ago

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Talja [164]

The correct answer is: a. n+1, n+1, n-1, n-1

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1. failure of a pair of homologous chromosomes to separate in meiosis I ,

2. failure of sister chromatids to separate during meiosis II, and

3. failure of sister chromatids to separate during mitosis.

As a consequence of nondisjunction abnormal chromosome numbers appears. If nondisjunction occurs during the meiosis I (anaphase I), this means that at least one pair of homologous chromosomes did not separate. The consequence is two cells that have an extra copy of one chromosome and two cells that lack that chromosome.

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4 years ago

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What's the life cycle of an organism?

Anettt [7]

In biology, a life cycle is a series of changes in form that an organism undergoes, returning to the starting state. "The concept is closely related to those of the lifehistory, development and ontogeny, but differs from them in stressing renewal."

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