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Anni [7]
3 years ago
15

Experiment: What is the effect of drinking coffee on a person's score on a memory test?

Biology
1 answer:
Arte-miy333 [17]3 years ago
3 0

Answer:

The independent variable would be the coffee.

Explanation:

In an experiment, the independent variable is something that is added or changed by the scientist in order to see if there will be a response.

In this case, the memory test score would be the dependent variable (something that changes as a result of a change in the independent variable).

Decaf coffee could be a control group, or a group that is treated the same as the independent variable but without being exposed in order to account for any outside factors.

Finally, the type of cup used would be a constant between the control group (using the decaf coffee) and the experimental group (the group with regular coffee).

Hope this helps!

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Unstained cells have very little contrast. What single adjustment could you make to your microscope that would make cells easier
hoa [83]

Answer and Explanation:

Microscope objects have thermal profiles. These profiles differ as a purpose of their physical parameters. Most objects are sold and designed for the resolution of fixed cell microscopy.

 There is little indication that the temperature cycle affects the strain characteristics. A large box can be constructed around the microscope and heated with hot air.

The heating system's cycling causes the specimen to drift out of focus and can also change the coverslip position.

The microscope can be equilibrated to a single temperature to eliminate the movement resulting from the thermal expansion of the microscope's components.

Air currents connecting the specimen chamber should also be reduced—tight control of temperature for the entire laboratory and microscope. Any change in the temperature can lead to unwanted movement in the microscope. Heating ducts often produce localized temperature changes.

3 0
3 years ago
Which component of the biosphere is an example of organic mater
adell [148]

Biosphere components which are examples of organic materials include:

- Soil

- plants

- animal

- water

- air, etc.

<h2>Further Explanation </h2>

Biosphere is part of the outer earth inhabited by humans, animals and plants. The biosphere consists of three environments, including the land cycle, the salt water cycle, and the fresh water cycle.

Biosphere ecosystem includes the following components;

1. a biotic component (in the form of living things)

2. Abiotic components (in the form of non-living creatures)

Learn More

Biosphere brainly.com/question/9318255

Biosphere component brainly.com/question/3088665

Details

Grade: Middlde School

Subject: Biology

Keyword: biosphere component, organic matter

6 0
3 years ago
Read 2 more answers
Cells produced by the root and shoot tip meristems become the tissues of the plant body.
Reptile [31]
<span>Cells produced by the root and shoot tip meristems become the primary tissues of the plant body. The correct option among the two options that are given in the question is the first option or option "A". I hope that this is the answer that has actually come to your great help.</span>
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Based on the image below, what is the most abundant element found in Earth's
Goryan [66]

Question below!

Based on the image below, what is the most abundant element found in Earth's crust?

Answer:

<u><em>Hi, There! Frozen Is Here to help!</em></u>

<u><em>The Correct Answer is Magnesium</em></u>

Hope this helps!

Have a great day!

*FrozenVines*

7 0
2 years ago
Which is a difference between the synaptic cleft and the synapse?
Allisa [31]

Answer:

Synaptic cleft

Synaptic cleft may be defined as the space between two neuron and the gap between post synaptic and pre synaptic neuron. This is one of the component of synapse. The signals are transmitted in the form of chemical signal.

Synapse:

Synapse may be defined as the functional contact between two neurons and the gap between two consecutive neuron. This synapse consists of Presynaptic and postsynaptic membrane. The signals can be transmitted in form of electrical and chemical synapse.

5 0
3 years ago
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