The main reason that it's important to test only one variable at a time is so that

2 answers:

4 0

This is to make sure the test is reliable because it can happen that the two variables being tested affect each other skewing results

lozanna [386]2 years ago

3 0

Because if we're simultaneously moving/manipulating two different variables it can be very hard to determine why one variable is changing and why the other is changing. While this can be done with more complicated experimental designs, it usually is the case that scientists will only manipulate one variable and not two different ones.

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1. They system that Linnaeus developed classifies organisms by ____.

marshall27 [118]

C. Genus and species

Binominal nomenclature: a formal system of naming species of living things, such as humans which are <em>homo sapiens.</em>

A. carbohydrates

any of a large group of organic compounds occurring in foods and living tissues and including sugars, starch, and cellulose.

C. work with other cells

one unicellular organism would quickly die if was not within a colony of very similar unicellular organisms.

C. Bacteria

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3 years ago

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2 years ago

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Stem cells found in adult tissue, such as in the bone marrow, brain, muscle, skin, and liver, are only capable of .

BigorU [14]

They are capable of renewing and dividing (multiplying) themselves for long periods of time, they are unspecialized, and they can give rise to other specialized cell types. Hope this helps!! :)

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2 years ago

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Astrocytes A. all of these B. induce the formation of the blood-brain barrier C. physically support neurons D. are important in

Keith_Richards [23]

Astrocytes perform the function of all of the given options i.e., induce the formation of the blood-brain barrier, physically support neurons, are important in the repair of brain injuries and in neural formation, take up excess K from the brain ECF.

Both invertebrates and vertebrates have Astrocytes, a star-shaped cell kind of neuroglia, in their nervous systems.
Astrocytes can be separated into protoplasmic and fibrous kinds. In the central nervous system's white matter, myelinated nerve fibers are frequently surrounded by fibrous astrocytes.
Numerous cytoplasmic processes on astrocytes end on axons, neuronal cell bodies, blood vessels, and synaptic terminals.

b) The development of the blood-brain barrier is aided by the Astrocytes

c) Astrocytes support neurons physically and metabolically.

d) Astrocytes help in transfer of blood-borne materials to the neuron, and injury response of the brain and repair of brain injuries.

e) They also help with detoxification, migratory guidance, energy metabolism regulation and removal of excess K from brain ECF.

learn more about astrocytes here: brainly.com/question/6966928

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