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Shalnov [3]
3 years ago
8

20 minutes of moderate cardiovascular exercise releases bdnf. a. True b. False

Biology
1 answer:
Sauron [17]3 years ago
7 0
The answer is true letter a
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Which of the following are physical characteristics of blood?
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Answer: Blood is slightly more viscous then water, pH is slightly alkaline it is about 8% of ones body total body weight the rest of the options are slightly wrong.

Explanation: Blood is red in colour, a dark red when it is deoxygnated and bright red when oxygenated. Its normal pH is 7,4 making it slightly alkaline and it accounts for 8% of one's total body weight with 92% being water. Its temperatures ranges around our normal body temperature which is 37°C.

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HELP ASAP PLEASE IM BEGGING Select the correct answer from the list for brainliest
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Answer:

three fourths

Explanation:

three fourths

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You are investigating the structure of the seeds of a newly discovered tropical plant. There is storage material inside the seed
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Answer:

Answer is C

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Since only starch have alpha glycosidic bond among all other macromolecules, and only amylase is appear to dissolve the storage material in the seed so the storage material is starch as a source of carbon and energy.

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Suppose a polymerase chain reaction (PCR) amplification process begins with exactly one double-stranded template DNA. How many D
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1. Number of DNA molecules after 30 Cycles of PCR = 1.02 x 10^9

2. No. of mutant DNA molecules = 1.07 x 10^9

Explanation:

1. You just have to take the exponential of 2 to the power of the number of PCR cycles (2^n)

2. All copies were normal at cycle 10 that are about 1024 copies. At cycle 11 single point error, all further copies are mutated.

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