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vampirchik [111]
2 years ago
13

Which scientist observed tiny pond organisms using his microscope and called them animalcules?

Biology
1 answer:
Wewaii [24]2 years ago
6 0

Answer:

scientist Antonie Van Leeuwenheok

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2 years ago
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What helix shaped structure tells the cell when to grow and what to do?
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La estructura se llama Cromosoma.

4 0
3 years ago
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If GFR is 125 ml/min, and you are studying a drug that has a renal clearance rate of 20 ml/min, you can conclude that
ahrayia [7]

Answer:

(B). The drug is reabsorbed.

Explanation:

Renal clearance rate determines the excretion of drugs into the urine during excretion. It is used to study the main process associated with a drug's renal excretion.

When the renal clearance rate is lower than GFR (glomerulus filtration rate), the drug is absorbed in the renal tubules. When the renal clearance rate is higher than GFR, the drug is secreted into the urine. When the renal clearance rate is equal to the GFR, the drug is neither reabsorbed nor secreted.

As for given drug, renal clearance is 20 ml/min (less than GFR), this drug will reabsorbed.

Thus, the correct answer is option (B).

4 0
2 years ago
Where does the second step of protein synthesis occur ?
OlgaM077 [116]

 Initiation:

In the cytoplasm, protein synthesis is actually initiated by the AUG codon on mRNA. The AUG codon signals both the interaction of the ribosome with m-RNA and also the tRNA with the anticodons (UAC). The tRNA which initiates the protein synthesis has N-formyl-methionine attached. The formyl group is really formic acid converted to an amide using the -NH2 group on methionine (left most graphic)

The next step is for a second tRNA to approach the mRNA (codon - CCG). This is the code for proline. The anticodon of the proline tRNA which reads this is GGC. The final process is to start growing peptide chain by having amine of proline to bond to the carboxyl acid group of methinone (met) in order to elongate the peptide.

5 0
3 years ago
Which of the following is true based on the cell theory?
Anton [14]
I believe that the answer is: Most organisms are made up of one or more cells
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2 years ago
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