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AnnyKZ [126]
2 years ago
14

The skeleton muscle systems guided notes answer key

Biology
1 answer:
rusak2 [61]2 years ago
4 0
Hey what is your question? i can help! :)
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Explain sources of error.
LekaFEV [45]

Answer:

Common sources of error include instrumental, environmental, procedural, and human. All of these errors can be either random or systematic depending on how they affect the results. Instrumental error happens when the instruments being used are inaccurate, such as a balance that does not work (SF Fig

Explanation:

4 0
3 years ago
What are roles of producers, consumers, and decomposers in an ecosystem​
Daniel [21]
An organism that obtains energy and nutrients by feeding on other organisms or their remains. A food web is a model of the feeding relationships between many different consumers and producers in an ecosystem. Without plants (the primary producers) consumers and decomposers would not be able to live. Producers always start every food chain. A consumer, also called a heterotroph, is an organism that cannot make its own food. It must eat producers or other organisms for energy.
5 0
3 years ago
HELPLP!!! Please it a test
Elis [28]

Answer:

species

Explanation:

3 0
3 years ago
Read 2 more answers
When methane (CH4) combines with oxygen (O2), carbon
FromTheMoon [43]

Answer:

C. CH4 + 202 – CO2 + 2H20

Explanation:

CH4+O2-CO2+H20

The above equation represents combustion of methane to produce carbon-dioxide and water.

One carbon atom is present on the reactant side as well as on the product side. Four hydrogen atoms are present on the reactant side  and two hydrogen atoms on product side. In order to balance this equation, we would multiply water molecule by two. Now there are four atoms of oxygen in the product side but only two on reactant side, so we will multiply oxygen molecule by two on the reactant side. Now the equation is balanced.

The balanced chemical equation is:

CH4+202-CO2+2H2O

This equation obeys the law of conservation of mass as the mass of the reactants is same as that of the products.

3 0
2 years ago
What is the purpose of using control groups in an experiment
Brums [2.3K]
Typically you use experimental and control groups in an experiment. a control group is like the default, and the experimental is the one you actually experiment with.

for example if i run an experiment on the effects of food dye on a leaf stem, i’ll have my control group (the ones without food dye) to compare to the experimental group (the ones with food dye)

the control group is a way for scientists to see how an experiment truly affected or altered the subject

6 0
3 years ago
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