Answer:
Day-to-day changes in weather can influence how we feel and the way we look at ... Meteorology is the science of forecasting weather.
<span>T he type of selection that favored progressively larger brain size in human evolution is
</span>directional selection. Directional selection is a type of natural selection (besides stabilizing selection, disruptive selection, kin selection,..)<span> in which an extreme phenotype is favored over other phenotypes. Because progressively larger brain size is an extreme phenotype this is a directional selection.</span>
Answer:
Si los continentes no se han movido, entonces esto sugeriría una capa de hielo que se extendía desde el polo sur hasta el ecuador en este momento, lo cual es poco probable ya que el Reino Unido en ese momento también estaba cerca del ecuador y tiene extensos depósitos de carbón y piedra caliza. Si los continentes del hemisferio sur se vuelven a ensamblar cerca del polo sur, entonces la capa de hielo Permo-Carbonífero asume un tamaño mucho más razonable. Más evidencia proviene de las estrías glaciales, arañazos en el lecho rocoso hechos por bloques de roca incrustados en el hielo como el glaciar se mueve. Estos muestran la dirección del glaciar y sugieren que el hielo fluyó desde un solo punto central.
Prokaryotic cells: lack membrane-bound organelles, relatively small - typically less than 10 μm in size.
Both cell types: use ribosomes to synthesize proteins, contain DNA.
Eukaryotic cells: complete copy of DNA stored in multiple chromosomes.
In particular, prokaryotic cells have no nucleus and no membrane-bound organelles, therefore their ribosomes float freely intracellularly. On the other hand, eukaryotic cells have nucleus and membrane-bound organelles. Also, their DNA is bound to proteins and stored in the form of chromosomes in the nucleus.
Answer:
2.Less than 73% of the populations would have only one allele present.
Explanation:
The two alleles chosen do not affect the fitness of flies in the lab environment, so Kerr and Wright could be confident that if changes in the frequency of normal and forked phenotypes occurred, they would not be due to natural selection.
Using a larger breeding population would not be expected to alter the outcome of the experiment.
