How did population of organisms change over time?

How did population of organisms change over time?

Evolution is a process that results in changes in the genetic material of a population over time. Evolution reflects the adaptations of organisms to their changing environments and can result in altered genes, novel traits, and new species. An example of macroevolution is the evolution of a new species. …

How is chromosome separation in meiosis different from chromosome separation in mitosis?

During meiosis I, chromosomes line up in homologous pairs in order for the cell to be reduced from diploid to haploid. They then line up end to end in meiosis II in order to separate sister chromatids. In mitosis, chromosomes separate only once. This results in two identical, diploid cells.

How species have changed and continue to change over time?

a) Species change over time; some traits become more common, others less. This process of change is driven by natural selection. The process described in a) continues to the point where descendants eventually constitute a different species from their remote ancestors. New species evolve from older ones.

Why there are still apes nowadays?

We didn’t evolve from apes; rather, apes and humans evolved from a common ancestor. Natural selection doesn’t care about whether a species is smarter or more progressive. Thus, the reason that modern apes are still around is that they have been successful at surviving in their environment.

What do Chlamydia come from?

Chlamydia is a SUPER common bacterial infection that you can get from sexual contact with another person. Close to 3 million Americans get it every year, most commonly among 14-24-year-olds. Chlamydia is spread through vaginal, anal, and oral sex. The infection is carried in semen (cum), pre-cum, and vaginal fluids.

How did the first person get syphilis?

The first well-recorded European outbreak of what is now known as syphilis occurred in 1495 among French troops besieging Naples, Italy. It may have been transmitted to the French via Spanish mercenaries serving King Charles of France in that siege. From this centre, the disease swept across Europe.

How did koalas get Chlamydia in the first place?

No one knows how or when koalas first got chlamydia. But the curse is at least centuries old. In 1798, European explorers reached the mountains of New South Wales and spied a creature that defied description: ear-tufted and spoon-nosed, it peered down stoically from the crooks of towering eucalyptus trees.