Kinesin has a tail region that binds to vesicles and two heads that can attach to microtubules.
Answer:
Minors
Explanation:
because she's under the age of 18 and it 21 in some states
Answer:
B: gene
C: nucleus
D: RNA polymerase
E: messenger RNA
F: cytoplasm
G: ribosomes
H: amino acids
I: codon
Explanation:
When you look at the protein synthesis process and the steps, this is how it all occurs. (: Hope this helped.
Absence of oxygen means anaerobic respiration ; which has 2 different pathways.
First Pathway ; Alcoholic fermentation which takes place in yeast.
Pyruvate is decarboxylated into ethanal releasing co2 as waste product.
Ethanal is toxic , so its reduced by help of NADH to ethanol in presence of alcohol dehydrogenase enzyme , and Free NAD is released to continue glycolysis.
2) The second pathway is Lactic fermentation which takes place in mammalian muscles.
Pyruvate accepts hydrogen and is converted to lactate by the help of enzyme lactate dehydrogenase , again free NAD is released to continue glycolysis.
Hope I made it clear enough :)
I believe the situation is something like the birds with shorter/longer beaks (depending on the situation) survive.
To answer the question, we have to understand the meaning of natural selection. natural selection is where the organisms with more favourable characteristics survive and reproduce and pass on the genes to offsprings while some of the organisms with less favourable characteristics die, so that there would be more organisms with that favorable characteristic in the population.
So in order to have natural selection happen, Birds must have different lengths of beaks, in order to make it happen, genetic variation must occur. if all the birds have the same length of beak, the either all survive or die, which is not the definition of natural selection.
Therefore, your answer should be genetic variation.