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s2008m [1.1K]
3 years ago
10

POSITIVE EFFECTS OF STIMULANT DRUGS ON THE BRAIN

Biology
1 answer:
tatuchka [14]3 years ago
5 0

Answer:

will improve how fast your brain works and also help you learn just as fast

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What are the basics of biology?​
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__________________ helps explain why there are a large number of marsupial mammal species in Australia and South America, two co
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An experiment is designed to determine if wheat grows better when it is planted alone or with clover. The design calls for 3 pan
Viktor [21]

Answer: Option B

Explanation:

Usually in scientific experiments, at least one parameter is checked; here, the growth rate of wheat in two different conditions is being evaluated.

Hence, growth rate of wheat alone in pans A, B and C becomes the standard or referential control against which the experimental control (Wheat + clover) in pans D, E and F is evaluated, since both treatments are exposed to the same external conditions.

I hope this helps

4 0
3 years ago
Which of the following was the major contribution made by Avery, MacLeod, and McCarty that strengthened the argument that the tr
galben [10]

The major contribution made by Avery, MacLeod, and McCarty was 'transformation of nonvirulent cells with a DNA extract was blocked only if DNase was added'. This observation supported the idea that the transforming agent in Griffith's experiment was DNA.

The Avery–MacLeod–McCarty experiment showed that DNA was the transforming agent observed in Griffith's experiment.

Griffith's experiment (1928) suggested that bacteria were capable of transferring genetic information (DNA) by a process of horizontal gene transfer called transformation.

While the bacteria were killed by heat, Frederick Griffith observed that the DNA had was taken up by II-R strain bacteria via transformation.

Avery–MacLeod–McCarty experiment observed that protease enzymes did not destroy the transforming agent (but DNAse destroyed this transforming principle), thereby suggesting that the transforming agent in Griffith's experiment was bacterial DNA.

Learn more in:

brainly.com/question/927265?referrer=searchResults

3 0
2 years ago
1/5
IgorC [24]

Answer:

↓

Explanation:

I can't really read what you have typed, but the subscripts are the little numbers such as this 2 in H₂O. So using the blue pen, I'm assuming you would circle the little numbers. The coefficients are the numbers in front of the elements so from what I can read, in 2HCl the 2 would be circled in the orange. So in a simple way the subscripts are the tiny numbers that are at the bottom (usually after elements), and the coefficients are normal numbers in front of the whole element.

Hopefully that makes sense! :)

7 0
2 years ago
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