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Brilliant_brown [7]
2 years ago
5

In some cases of head injuries, the cerebrum may be affected. This type of injury could cause a loss of

Biology
1 answer:
dedylja [7]2 years ago
7 0
Concussions and amnesia are types of head injuries
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Two scientists wanted to determine if temperature affects the growth of plants answers
bija089 [108]
The goal of an experimental investigation is to determine how changes in an independent variable affects another variable, which is called the dependent variable.

Remember: When designing an Experimental Investigation it is important that you only have one independent variable and one dependent variable. All other variables must be controlled, meaning they must stay the same.

FYI: Controlled variables are not the same as a Control for your Investigation. The following will explain this.

Start Experiment Design:

I want you to understand some of the thought processes for designing an experiment that meets Science Fair Project requirements.

1. You need to have a purpose for your investigation. At this point you may not know exactly what you want to do but let’s assume you want to work with plants. I’d search the web and find different project ideas about plants.
You will find ideas on this page?



Let’s assume you decide to investigate how light effects plant growth. At this point you need to write a basic purpose. I point out that this is might only be a BASIC Purpose, meaning you may need to improve it.

Basic Purpose of Investigation: How light effects plant growth.

I’ll come back to the purpose, but next you need to write your science fair question.

2. The question for an experimental investigation must identify both the independent variable and the dependent variable. Your basic purpose identifies light as the independent variable and plant growth as the dependent variable.

Don’t Forget: The independent variable and the dependent variable for an experimental investigation must be measurable.

Measuring the Independent Variable

How does one measure light?
Light is very general. You need to be more specific about the independent variable. You will get the point after reading the following questions.

Do you want to measure how different types of light sources, such as sunlight, artificial light, or colored light effects plant growth? This is a good idea for a science project.
Do you want to measure how changes in the amount of one type of light effects plants growth?
This is another good idea for a science project.See ????? for more ideas for how light affects plant growth.
You may have other ideas about the light you want to use, but for this article, I will give examples for measuring the amount of one type of light.

The Independent Variable is the amount of light the plant received.

Ideas for how to change the amount of light.

1. Use sunlight which changes during the day as well as from one day to the next.
You can also use direct and indirect sunlight.

2. If you use artificial light you can decide when and for how long the plant will receive this light. You also have the option to control the wattage of light used–its color–type (fluorescent, UV, incandescent). Just use the same type of light for each test plant–see controlled var

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5 0
3 years ago
Name the different levels on organization within the biosphere, from smallest to largest
Alexandra [31]
The different levels of organisation within the biosphere, from the smallest to largest are:
1. Individual, species or creatures

the organisms
2. population
The entire populace
3. community
The total population at a given point in time and place.
4. ecosystem
The biotic and abiotic factors that are interacting.
5. biome
The ecosystems that share the same characeristics and abiotic factors.
6. biosphere
The entire living and nonliving organism in the planet earth, from prokaryotic cells to eukaryotic cells and how organic compounds from its enviroment aid in their survival

6 0
3 years ago
Read 2 more answers
How is specific gravity extracted from the earth?
Semenov [28]

Answer:

The formula for specific gravity, given that the reference substance is water, is the density of the object divided by the density of the water.

6 0
3 years ago
Which of the following is an organism whose cells do not have a membrane-
satela [25.4K]

Answer:

C. A prokaryote

Explanation:

A prokaryote is an organism that consists of a single cell that does not have a nucleus or membrane-bound organelles.

4 0
3 years ago
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A mutation in a gene often results in a reduction of the product of that gene. The term for this type of mutation is ________. A
krok68 [10]

Answer:

loss of function or null (in the case of complete loss)

Explanation:

hope this helps

5 0
3 years ago
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