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Un grupo de estudiantes utilizan un aparato para estudiar la tranferencia de energia durante la reaccion quimica entre pedazos d

NNADVOKAT [17]

Explanation:

It correctly reads;

A group of students use a device to study the energy transfer during the chemical reaction between pieces of eggshell (calcium carbon) and vinegar (acetic acid). During the experiment they use the same mass of eggshell but the concentration of the vinegar varies, (1%, 3% and 5%). Answer:

1. Explain why the energy transfer is not the same between the three tests of the experiment.

2. Describe how the device could be modified so that it can MORE ACCURATELY measure the energy transfer in each reaction.

5 0

3 years ago

If a long-day plant has a critical night length of 9 hours, which 24 -hour cycle would prevent flowering?

julsineya [31]

If a long-day plant has a critical night length of 9 hours, a 24 -hour cycle of 14 hours light / 10 hours dark would prevent flowering.

Flowering plants are plants that bear flowers and fruits and form clade angiosperms, commonly called angiosperms.

The term “angiosperm” is derived from the Greek angeion (“vessel”) and sperma (“seed”) and refers to plants that produce seeds that are encased in fruit.

By far the most diverse group of land plants, with 64 orders, 416 families, about 13,000 known genera, and 300,000 known species. In earlier days, angiosperms were also called Magnoliophyta.

Many flowers have bright colors, strong scents and sweet nectar to attract pollinators. It can attract insects, birds, mammals and even reptiles.

When visiting flowers, pollinators pick up pollen from the anthers. When pollinators visit the next flower, some of the pollen sheds the stigma. This allows for cross-pollination and increases genetic diversity.

Learn more about Flowering here : brainly.com/question/91296

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3 0

2 years ago

Which of the following would be an example of leading to new species with certain traits desired by humans?

Irina18 [472]

I think the answer is A hope this helps

7 0

3 years ago

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Question 1 6 pts

balu736 [363]

uestion 1 6 pts

In a lab report, the hypothesis should be in the "method" section.

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False

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Question 2 6 pts

In a lab report, the background information / research should only be one sentence.

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False

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Question 3 6 pts

In a lab report, the "materials" section is a bulleted list of the materials used.

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False

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Question 4 6 pts

In a lab report, the "statement of purpose" is in the "introduction" section.

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False

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Question 5 6 pts

In a lab report, a discussion of the results should be in the "results" section.

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False

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Question 6 6 pts

In a lab report, any errors made should be mentioned in the "discussion" section.

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False

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Question 7 6 pts

In a lab report, a numbered, step-by-step set of instructions for performing the experiment should be in the "discussion" section.

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False

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Question 8 6 pts

In diffusion, solute moves from an area of high concentration to an area of low concentration.

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False

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Question 9 6 pts

In osmosis, the solvent moves.

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False

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Question 10 6 pts

One of the products produced in photosynthesis is glucose.

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Question 11 6 pts

The order of mitosis is: interphase, prophase, anaphase, telophase, metaphase.

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False

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Question 12 7 pts

Human cells have 17 chromosomes.

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Question 13 7 pts

Meiosis is involved in the production of gametes.

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False

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Question 14 7 pts

Plant cells have a cell wall.

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False

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Question 15 7 pts

ATP is produced in the mitochondria.

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False

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Question 16 6 pts

In the process of cellular respiration, ATP is produced

True

False

8 0

3 years ago

Ozone in the stratosphere is a form of air pollution,<br> True or False?

DiKsa [7]

Answer: False

Explanation:

3 0

3 years ago

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