3 years ago

Help me plsssssssss ty

Biology

2 answers:

Vera_Pavlovna [14]3 years ago

5 0

Answer:

Number 3, Desert

Explanation:

evablogger [386]3 years ago

5 0

Answer:

Desert

Explanation: It's always hot in the day and freezing at night.

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When a living organism dies, it stops taking in new carbon. Thus, as the radioactive carbon-14 decays, the ratio of carbon-12 to

Alexxandr [17]

Answer: The fossil is 11459 years old.

Explanation:

Half-life of carbon-14 = 5700 years

First we have to calculate the rate constant, we use the formula :

$k=\frac{0.693}{5700\text{years}}$

$k=1.21\times 10^{-4}\text{years}^{-1}$

Now we have to calculate the age of the sample:

Expression for rate law for first order kinetics is given by:

$t=\frac{2.303}{k}\log\frac{a}{a-x}$

where,

k = rate constant = $1.21\times 10^{-4}\text{years}^{-1}
t = age of sample = ?
a = let initial amount of the reactant = 100 g
x = amount decayed = 75 g
a - x = amount left after decay process = 100 - 75 = 25 g Now put all the given values in above equation, we get
[tex]t==\frac{2.303}{1.21\times 10^{-4}}\log\frac{100}{25}$

$t=11459years$

The fossil is 11459 years old.

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3 years ago

Plants in the ______ are succulent because they need to hold as store a lot of moisture

Yakvenalex [24]

Answer:

Plants in the desert are succulent because they need to hold as store a lot of moisture

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3 years ago

Who is known as the father of taxonomy?

natima [27]

Carolus Linnaeus.

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3 years ago

In the poems extended metaphor the “fearful trip”is?

soldi70 [24.7K]

Answer:

the civil war

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3 years ago

The practice of caloric restriction involves consuming a balanced diet but restricting your caloric intake by approximately ____

Ulleksa [173]

The practice of caloric restriction involves consuming a balanced diet but restricting your caloric intake by approximately 25% below the level of energy consumed in a freely chosen diet.

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3 years ago

Help me plsssssssss ty ​

Help me plsssssssss ty