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never [62]
3 years ago
10

Why was carbon-14 perfect for determining the dates that organisms died?

Biology
1 answer:
Alex777 [14]3 years ago
7 0

Answer: B.

Explanation:

cant be 'A' cause carbon 14 is found in any living organism and mammals are not the only living organism on this planet

cant be 'C' cause ancient plants still replenish carbon 14 molecules and it'd be impossible to now its age when its still alive

couldnt be 'D' cause yeah while alive organisms do absorb carbon 14 that still defeats the purpose of dating with the carbon 14 method cause its still also taking in carbon dioxide, so the carbon-14 molecules will just keep filling until the organism dies. the whole point of dating with carbon 14 is to measure its deplenish (dying) not continual replenish (living)

dont know if that makes any sense to you but yeah 'B' is the answer, if it isnt im stoopid but im not

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The code for heridity is carried on in each organism's DNA
Mrrafil [7]

Answer:

heridity is carried through the gene of the organisms parents

8 0
3 years ago
What is the highest taxonomic rank of organisms?
kvasek [131]

The Highest Taxonomic Rancho Of Organisms Is Domain A Domain

6 0
3 years ago
What is the energy requirement in kJ/mol to transport a proton across the mitochondrial inner membrane in plant cells at night w
lions [1.4K]

Answer:

C. +23.1 kJ/mol

Explanation:

the formula to use to calculate the energy requirement in kJ/mol to transport a proton across the mitochondrial inner membrane in plant cells is:

ΔGt = RTIn  \frac{C_{2} }{C_1}   + ZFΔV

let's list the values of the data we are being given in the question to make it easier when solving it.

Z= 1

F= 96500C (faraday's constant)

ΔV= 160mV = 0.160V

R= 8.314( constant)

T= 15ºC ( converting our degree Celsius into kelvin, we will have 273.15k+ 15 = 288.15K)

∴ T= 288.15K

Putting it all together in the formula, we have:

ΔGt = 8.314 × 288.15 × 2.303 log \frac{C_{2} }{C_1}  + 1  × 96500 × 0.160

ΔGt = 5517.25   [ -(log(H^{+}_{out} ) + log(H^{+}_{in} )_{in}  +15440

ΔGt  = 5517.25 (pH_{out} - pH_{in}  +15440

Given that the pH  differential gradient  across the membrane is 1.4pH units. It implies that;

ΔGt  = 5517.25 × 1.4 + 15440

=  7724.15 +15440

= 23164.15 Joules/moles

= +23.1 KJ/mole

4 0
4 years ago
Which is true regarding homologous chromosomes?
inessss [21]
Hi! 

Homologous chromosomes are found in any normal/basic diploid cell and a homologous pair of chromosomes will be identical genetic copies of each other.
Being that both of these answer choices appear to be correct, the answer would be letter choice (E) two of the above are true?

Hope I could help!
- Peaculiar 


5 0
4 years ago
PLZ HELP HURRY ASAP
stich3 [128]

The Answer You Are Looking For is "C" , exons (:

-Jojo

4 0
4 years ago
Read 2 more answers
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