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myrzilka [38]
2 years ago
10

A teacher asks her students to find the average mass of a chicken egg. Each student is provided a carton of a dozen eggs and is

asked to create his or her own procedure for finding the average mass. Felicia chooses an egg that appears to be of average size. She places the egg on a balance and records its mass as the average. Darren finds the individual mass of one of his eggs and records it. He repeats the procedure for each of the 12 eggs. He lists all of the masses in order from smallest to largest and then records the most commonly appearing mass as the average. Colin finds the individual masses of all of his eggs. He also asks his classmates for the individual masses of their eggs. He adds the masses of all of the eggs in the classroom and divides by the total number of eggs measured. He records this mass as the average. Ella places all 12 of her eggs on a balance at the same time. She divides the total mass by twelve and records it as the average. Whose procedure is likely to produce the most accurate result?
Biology
2 answers:
ad-work [718]2 years ago
8 0

If you have all the eggs weighed at different times and then write them down, after that add all of the number together. Divide the number by the amount of eggs. BOOM ANSWER!

Marianna [84]2 years ago
5 0

Answer:

Collin's procedure will likely produce the most accurate result

Explanation:

The number of trials done in any lab or scientific investigation helps to reduce the uncertainty in the result or divide the uncertainty proportionally.

Here, Darren among all the students has taken 12 trials for 12 eggs individually while Felicia just picked one egg of average size based on her guess analysis. Collin on the other hand sum up the individual masses of all eggs in the classroom and then takes the average of it. Ella put all 12 eggs at once , finds a combined weight of them and then divides it by 12.

Now, since Collin has taken the maximum number of samples (as he has taken weight of individual eggs of all his class mates), therefore his result will give more accurate result.

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A test organism develops a genetic mutation that causes neurons to develop without synaptic knobs. How will this impact neuronal
kvv77 [185]

Answer:

The electrical signal will not be converted into chemical signal.

Explanation:

The synaptic knob is the bulbous enlargement also called synaptic terminal preset at the end of the axon.

The synaptic knob is a living cell and thus contains all the living features but they also contain the vesicles which store the neurotransmitters, therefore, synaptic knob acts as a site which converts the electrical signal into a chemical signal. The released neurotransmitter from the synaptic knob interacts with the post neuron or recipient neuron.

If the mutation develops in the neurons which result in the formation of neurons without synaptic knob therefore the electrical signal will not be converted into a chemical signal and thus signal will stop.

8 0
2 years ago
In the generation of most anions, the energy change (kj/mol) that _______ an electron is ________.
stepan [7]

The answer is D. An anion is a negatively charged ion, which means it has accepted an extra electron (s) from a donor ion (cation). To add an electron, energy has to be released so that the electron can be less excited and go back to its orbital level. The released energy is equivalent to the energy required to remove the electron from its orbital level.

7 0
2 years ago
In summers, the leaves of a potted plant droops when the soil becomes dry. Which cell organelle makes the leaves to droop?
Kipish [7]

Answer:

4) Vacuole as it loses all the water

Explanation:

5 0
1 year ago
Read 2 more answers
A scientist measured the distance between fixed points on two different plates over the course of a decade and found that the di
Anna71 [15]

Answer:

No because the tectonic plate theory says that they move but if they didn’t move then it proves it wrong.

4 0
1 year ago
You were able to radioactively tag and thereby trace an amino acid that is used to make insulin, a hormone that will be exported
Mnenie [13.5K]

Answer:

B) rough ER → Golgi complex → Golgi vesicle → extracellular fluid

Explanation:

  • Insulin is synhtesized by beta cells of pancereas (preproinsulin).
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